Previous Issue: New Series, Vol. 91, No. 2349, Jan. 5, 1940
Next Issue: New Series, Vol. 91, No. 2351, Jan. 19, 1940

Front Matter (8 pp.)

The American Association for the Advancement of Science

Pathways of Medical Progress, pp. 25-31
Carl J. Wiggers

The Synthesis of Vitamin K1, pp. 31-36
Louis F. Fieser

Obituary

Jonas Bernard Nathanson, pp. 36-37
Chas. W. Prine

In Honor of George Frederick Arps, p. 37
Recent Deaths, p. 37

Scientific Events

The New Federal Nutritions Laboratory at Cornell University, pp. 37-38
The American Standards Association, pp. 38-39
Convention of the American Institute of Electrical Engineers, p. 39
Officers of the American Association for the Advancement of Science, pp. 39-40

Scientific Notes and News, pp. 40-43

Discussion

Two Paradoxes, p. 43
Paul R. Heyl

Oxygen Relations in Hydrophytes, pp. 43-44
W. A. Cannon

Hardiness of the Paper-Mulberry Tree, p. 44
E. A. Andrews

The Galton Laboratory, pp. 44-45
R. A. Fisher

Quotations

Chemistry in the Service of the State, pp. 45-46

Scientific Books

The Life and Letters of Lord Rutherford, pp. 46-48
Rutherford: Being the Life and Letters of the Rt. Hon. Lord Rutherford, O.M.
A. S. Eve

Review author[s]: W. F. G. Swann

Special Articles

Studies on the Fate of Plasma Prothrombin, pp. 48-50
William DeW. Andrus; Jere W. Lord; Joseph T. Kauer

Impedance of Bimolecular Films, pp. 50-51
R. B. Dean; H. J. Curtis; K. S. Cole

Scientific Apparatus and Laboratory Methods

Mass Production of Vaccine against Typhus Fever of the European Type, pp. 51-52
Hans Zinsser; Harry Plotz; John F. Enders

Science News, pp. 6+8-9
Back Matter (1 p.)

Previous Issue: New Series, Vol. 91, No. 2349, Jan. 5, 1940
Next Issue: New Series, Vol. 91, No. 2351, Jan. 19, 1940

Science, New Series, Vol. 91, No. 2351, Jan. 19, 1940

Previous Issue: New Series, Vol. 91, No. 2350, Jan. 12, 1940
Next Issue: New Series, Vol. 91, No. 2352, Jan. 26, 1940

Front Matter (10 pp.)

The American Association for the Advancement of Science

White Man Versus the Prairie, pp. 53-58
Raymond J. Pool

Vitamin K, pp. 58-62
E. A. Doisy; S. B. Binkley; S. A. Thayer; R. W. McKee

Obituary

Ferdinand Augustus Silcox: 1882-1939, pp. 62-63
Henry S. Graves

Recent Deaths and Memorials, p. 63

Scientific Events

The Cancer Institute of Medicine at Buenos Aires, pp. 63-64
Cooper Union Engineering Camp, p. 64
The Observatory of the Case School of Applied Science, pp. 64-65
Expeditions of the Field Museum, Chicago, p. 65
The New York Meeting of the American Physical Society, pp. 65-66
Awards of the Geological Society, London, p. 66

Scientific Notes and News, pp. 66-69

Discussion

Stagnation of Ice in Connecticut, pp. 69-70
Richard J. Lougee

Macrocosms in Vitro, pp. 70-71
J. Robert Wells

Tornado Cloud Seen in Alaska, p. 71
W. A. Rockie

A New Use for the Psychological Index, p. 72
H. L. Ansbacher

Quotations

The University of Cracow, pp. 72-73

Scientific Books

A Study of Pneumonia, pp. 73-74
Pneumonia, with Special Reference to Pneumococcus Pneumonia
Roderick Heffron

Review author[s]: Colin M. MacLeod

Special Articles

The Chromosomes of the Chimpanzee, pp. 74-75
C. H. Yeager; T. S. Painter; R. M. Yerkes

Cortin-Like Effects of Steroid Glycosides on Potassium, pp. 75-76
Raymund L. Zwemer; Bertrand E. Lowenstein

Coenzyme Concentration of Tissues, p. 76
Frederick Bernheim; Anton V. Felsovanyi

Particulate Components of Normal and Tumor Cells, pp. 77-78
Albert Claude

Science News, pp. 8+10a+11a
Back Matter (1 p.)

Previous Issue: New Series, Vol. 91, No. 2350, Jan. 12, 1940
Next Issue: New Series, Vol. 91, No. 2352, Jan. 26, 1940

Science, New Series, Vol. 91, No. 2352, Jan. 26, 1940

Previous Issue: New Series, Vol. 91, No. 2351, Jan. 19, 1940
Next Issue: New Series, Vol. 91, No. 2353, Special Issue Containing Reports of the Third Columbus Meeting of the American Association for the Advancement of Science and Associated Societies, Feb. 2, 1940

Front Matter (7 pp.)

The American Association for the Advancement of Science

The Measurement of Velocity with Atomic Clocks, pp. 79-84
Herbert E. Ives

Constitutional Barriers to Involvement of the Nervous System by Certain Viruses, pp. 84-87
Albert B. Sabin

Obituary

Roy Graham, pp. 87-88
Edson S. Bastin

Recent Deaths, p. 88

Scientific Events

Scientific Research and Technical Development in Great Britain, p. 88
The Work of the Commonwealth Fund, p. 89
Awards of the American Society of Civil Engineers, pp. 89-90
The Wilkes Exploring Expedition, p. 90

Scientific Notes and News, pp. 90-93

Discussion

Original Sources in Vertebrate Embryology and Animal Cytology, pp. 93-94
Waldo Shumway

Diplodia Stem-End Rot of Lemons Controlled with Sodium Ethyl Mercuri Thiosalicylate, pp. 94-95
G. H. Godfrey; W. H. Friend

The Experimental Production of Hepatic Cirrhosis by the Seed of Amsinckia Intermedia, p. 95
Ernest C. McCulloch

An Effect of Benzedrine Sulfate on Chicks, p. 95
Raymond M. Selle

Are Pectic Substances Precursors to Lignin?, pp. 95-96
Emmett Bennett

Special Articles

The Production of Tumors by Injection of a Carcinogen into the Amniotic Fluid of Mice, pp. 96-97
L. W. Law

Anaphase Movement in Allium cernuum, pp. 97-98
Robert T. Brumfield

Multiple Growth Layers in the Annual Increments of Certain Trees at Lubbock, Texas, pp. 98-99
Waldo S. Glock; E. L. Reed

Scientific Apparatus and Laboratory Methods

A Simple Gravimetric Alcohol Check for Calibration of Metabolism Apparatus, pp. 99-100
Walter B. Shelley; Allan Hemingway

Defoliation of Rose Plants with Ethylene Gas, p. 100
J. A. Milbrath; Elmer Hansen; Henry Hartman

Science News, p. 6

Science, New Series, Vol. 91, No. 2353, Special Issue Containing Reports of the Third Columbus Meeting of the American Association for the Advancement of Science and Associated Societies, Feb. 2, 1940

Previous Issue: New Series, Vol. 91, No. 2352, Jan. 26, 1940
Next Issue: New Series, Vol. 91, No. 2354, Feb. 9, 1940

Front Matter (43 pp.)
The Third Columbus Meeting of the American Association for the Advancement of Science and Associated Societies, pp. 101-124
F. R. Moulton

Science News, pp. 40+42+44+46
Back Matter (29 pp.)

Previous Issue: New Series, Vol. 91, No. 2352, Jan. 26, 1940
Next Issue: New Series, Vol. 91, No. 2354, Feb. 9, 1940

Science, New Series, Vol. 91, No. 2354, Feb. 9, 1940

Previous Issue: New Series, Vol. 91, No. 2353, Special Issue Containing Reports of the Third Columbus Meeting of the American Association for the Advancement of Science and Associated Societies, Feb. 2, 1940
Next Issue: New Series, Vol. 91, No. 2355, Feb. 16, 1940

Front Matter (6 pp.)
The First Forty Years of the Society of American Bacteriologists, pp. 125-129
C.-E. A. Winslow

Presentation of the Gold Medal of the American Institute of the City of New York

A Modern Pioneer, pp. 129-131
David Sarnoff

The Story of Short Waves, pp. 131-132
Frank Conrad

Obituary

Frederic Schiller Lee, p. 133
Horatio B. Williams

Alfred George Jacques, pp. 133-134
W. J. V. Osterhout

Recent Deaths and Memorials, p. 135

Scientific Events

Annual Report of the Director of the New York Botanical Garden, pp. 135-136
Enlargement of the Chemistry Building of the University of Cincinnati, p. 136
Officers of the Washington Academy of Sciences, p. 136
The Summer Meetings of Botanists, pp. 136-137
Ira L. Wiggins

The American Chemical Society and Dr. Springer, p. 137

Scientific Notes and News, pp. 137-140

Discussion

An Endemic Palm on Cocos Island near Panama Mistaken for the Coconut Palm, pp. 140-142
O. F. Cook

Momentum and Energy, p. 142
R. F. Deimel

The Usefulness of Biological Abstracts, p. 142
Carl G. Hartman

Scientific Books

Terrestrial Magnetism and Electricity, pp. 142-143
Terrestrial Magnetism and Electricity
J. A. Fleming

Review author[s]: W. F. G. Swann

Modern Science, p. 143
Modern Science
Hyman Levy

Review author[s]: C. G. Montgomery

Prehistoric Life, pp. 143-144
Prehistoric Life
Percy E. Raymond

Review author[s]: Hervey W. Shimer

Societies and Meetings

The Tennessee Academy of Science, pp. 144-145
J. T. McGill

Special Articles

Resonance and the Chemistry of Histidine, pp. 145-146
Terrell L. Hill; Gerald E. K. Branch

Further Evidence of Sex Variation in the Utilization of Iron by Anemic Rats, pp. 146-147
Louise Otis; Margaret Cammack Smith

On the Origin of Urogastrone, pp. 147-148
C. U. Culmer; J. S. Gray; J. L. Adkison; A. C. Ivy

Scientific Apparatus and Laboratory Methods

A Roller Bottle Tissue Culture System, pp. 148-149
Darrel T. Shaw; Lawrence C. Kingsland; Austin M. Brues

The Use of a Translongitome in Making and Interpreting Alternate Transverse and Longitudinal Serial Sections, p. 150
D. M. Crooks

Science News, pp. 5-7
Back Matter (1 p.)

Science, New Series, Vol. 91, No. 2355, Feb. 16, 1940

Previous Issue: New Series, Vol. 91, No. 2354, Feb. 9, 1940
Next Issue: New Series, Vol. 91, No. 2356, Feb. 23, 1940

Front Matter (9 pp.)

The American Association for the Advancement of Science

Science, War and Reconstruction, pp. 151-158
Julian Sorell Huxley

The Gravity Anomaly an Important Factor in Earth Science, pp. 158-160
William Bowie

Obituary

Charles Zeleny, pp. 160-161
Fernandus Payne

Almon Ernest Parkins, p. 161
S. C. Garrison; H. A. Webb

Recent Deaths and Memorials, p. 161

Scientific Events

The New York Academy of Medicine, pp. 161-162
Symposium of the Society for Development and Growth, p. 162
Research Conferences on Chemistry at Gibson Island, pp. 162-163
Bermuda Biological Station for Research, p. 163
The Phipps Auditorium of the Colorado Museum of Natural History, p. 163
Gifts for Scientific Research at Cornell University, pp. 163-164

Scientific Notes and News, pp. 164-167

Discussion

The Smaller Animals of the Great Plains, pp. 167-168
V. E. Shelford

Anaplasmosis among Deer in the Natural State, p. 168
William Hutchins Boynton; Gladys M. Woods

Increasing the Usefulness of Maps, p. 169
R. L. Edwards

Special Articles

Manganese Deficiency for Citrus in California, pp. 169-170
E. R. Parker; H. D. Chapman; R. W. Southwick

The Production and Utilization of Alcohol by Plant Tissues, pp. 170-171
C. A. Ludwig; Franklin E. Allison; Sam R. Hoover; Francis W. Minor

The Effects of a Beef Liver Fraction upon Fat Synthesis in Rats, p. 171
E. W. McHenry; Gertrude Gavin

The Pigment of the Vertebrate Lens, p. 172
Gordon L. Walls

Scientific Apparatus and Laboratory Methods

An Apparatus for the Study of Experimental Air-Borne Disease, pp. 172-174
W. F. Wells

Halowax-Paraffine for Infiltrating Histologic Tissues, p. 174
Ed. D. Crabb

Science News, pp. 8-10

Previous Issue: New Series, Vol. 91, No. 2354, Feb. 9, 1940
Next Issue: New Series, Vol. 91, No. 2356, Feb. 23, 1940

Science, New Series, Vol. 91, No. 2356, Feb. 23, 1940

Previous Issue: New Series, Vol. 91, No. 2355, Feb. 16, 1940
Next Issue: New Series, Vol. 91, No. 2357, Mar. 1, 1940

Front Matter (9 pp.)

The American Association for the Advancement of Science

Divergent Pathways in Sexual Development, pp. 175-182
Wesley R. Coe

Obituary

William Snow Miller: 1858-1939, pp. 182-183
C. H. Bunting

Recent Deaths, p. 183

Scientific Events

A Mineral Map of Canada, pp. 183-184
Entomology at Dartmouth College, p. 184
Report of the President of the Carnegie Foundation for the Advancement of Teaching, pp. 184-185
Summer Conferences on Astronomy at the Harvard Observatory, p. 185
The American Institute of Mining and Metallurgical Engineers, pp. 185-186

Scientific Notes and News, pp. 186-189

Discussion

Rainbows at Honolulu, p. 189
Chester K. Wentworth

A Type Specimen Comes Home, pp. 189-190
C. W. Gilmore

Was the American Mano and Metate an Invention Made during Pleistocene Time?, pp. 190-191
Cyrus N. Ray

Authors' Abstracts, p. 191
Gordon S. Fulcher

Scientific Books

Virus and Rickettsial Diseases, pp. 192-194
Virus and Rickettsial Diseases: With Especial Consideration of Their Public Health Significance

Review author[s]: Thomas M. Rivers

California Shrubs, pp. 194-195
An Illustrated Manual of California Shrubs
Howard E. McMinn

Review author[s]: LeRoy Abrams

Reports

Finances of the American Association for the Advancement of Science, pp. 195-196
F. R. Moulton

Survey of Research in Industry, pp. 196-198
Ross G. Harrison

Special Articles

The Inactivation of Epidemic Influenza Virus by Nasal Secretions of Human Individuals, pp. 198-199
Thomas Francis

Chlorophyll as the Prosthetic Group of a Protein in the Green Leaf, pp. 199-200
Emil L. Smith

Vitamin B6 as an Accessory Growth Factor for Staphylococcus albus, pp. 200-201
S. P. Vilter; T. D. Spies

Scientific Apparatus and Laboratory Methods

Graphical Method for Determining Warburg Vessel Constants at Various Fluid Volumes, pp. 201-202
J. MacLeod; W. H. Summerson

Determination of Relative Humidity While Measuring Respiration in a Gas Train System, p. 202
Winston W. Jones

Science News, pp. 8-10

Previous Issue: New Series, Vol. 91, No. 2355, Feb. 16, 1940
Next Issue: New Series, Vol. 91, No. 2357, Mar. 1, 1940

Science, New Series, Vol. 91, No. 2357, Mar. 1, 1940

Previous Issue: New Series, Vol. 91, No. 2356, Feb. 23, 1940
Next Issue: New Series, Vol. 91, No. 2358, Mar. 8, 1940

Front Matter (13 pp.)
The Role of Refugees in the History of American Science, pp. 203-208
C. A. Browne

Obituary

Jacob Elry Metzger, pp. 208-209
T. B. Symons

Recent Deaths and Memorials, p. 209

Scientific Events

Scientific Collaboration between Great Britain and France, pp. 209-210
Fellowships for Business Executives of the Massachusetts Institute of Technology, p. 210
Grants of the Committee on Scientific Research of the American Medical Association, pp. 210-211
Monographs of the Iron Alloys Committee of the Engineering Foundation, p. 211
The Cincinnati Meeting of the American Chemical Society, pp. 211-212

Scientific Notes and News, pp. 212-215

Discussion

Copyright, pp. 215-216
Waldo G. Leland

Types of Animal Reflexes, p. 216
G. H. Parker

New Mathematical Library of Institute for Advanced Study, pp. 216-217
Hermann Weyl

Record of Chemical Progress, p. 217
Neil E. Gordon

Scientific Books

English Diet, pp. 217-218
The Englishman's Food; a History of Five Centuries of English Diet
B. J. C. Drummond; Anne Wilbraham

Review author[s]: John R. Murlin

Antoni Van Leeuwenhoek, pp. 218-219
The Collected Letters of Antoni Van Leeuwenhoek

Review author[s]: Charles A. Kofoid

Reports

Membership of the American Association for the Advancement of Science, pp. 219-220
F. R. Moulton

Special Articles

Histamine Release from Blood Cells in Anaphylaxis in Vitro, p. 221
Gerhard Katz

Potassium Deficiency in Ammonium-and Nitrate-Fed Tomato Plants, pp. 221-222
M. E. Wall; V. A. Tiedjens

Polyploidy in Soybean, Pea, Wheat and Rice, Induced by Colchicine Treatment, p. 222
P. S. Tang; W. S. Loo

Scientific Apparatus and Laboratory Methods

A Modified Kendall Tube for Purifying Nitrogen, pp. 222-223
G. M. Savage; Z. John Ordal

Cold Extraction Apparatus, pp. 223-224
Joseph Benotti

Science News, pp. 10+12+14
Back Matter (2 pp.)

Previous Issue: New Series, Vol. 91, No. 2356, Feb. 23, 1940
Next Issue: New Series, Vol. 91, No. 2358, Mar. 8, 1940

Science, New Series, Vol. 91, No. 2358, Mar. 8, 1940

Previous Issue: New Series, Vol. 91, No. 2357, Mar. 1, 1940
Next Issue: New Series, Vol. 91, No. 2359, Mar. 15, 1940

Front Matter (9 pp.)
New Methods in Spectroscopy, pp. 225-228
George R. Harrison

Forces Driving the Respiratory Act, pp. 229-233
Robert Gesell

Scientific Events

The Beit Memorial Fellowships, pp. 233-234
Nominations to the Council of the American Association of Museums, p. 234
Symposium on the Thermodynamics of Hydrocarbons, p. 234
Pioneers on the American Frontiers of Industry, pp. 234-235
Recent Deaths, pp. 235-236

Scientific Notes and News, pp. 236-238

Discussion

Science in China, pp. 238-239
William S. Cooper; Pei-Sung Tang

Injury to Trees from Sulfur Dioxide Fumes of Electric Refrigerators, pp. 239-240
Malcolm A. McKenzie; Linus H. Jones

Anthelmintic Inactivity of Fresh Pineapple Juice in Vivo, pp. 240-241
E. Kuitunen-Ekbaum

Societies and Meetings

The American Association of Scientific Workers at Columbus, p. 241
Enos E. Witmer

Reports

Grants for Research of the Virginia Academy of Science, p. 242
E. C. L. Miller

Grants for Research of the American Geological Society, pp. 242-243

Special Articles

The Possible Identity of Vitamin H with Biotin and Coenzyme R, pp. 243-245
Paul György; Donald B. Melville; Dean Burk; Vincent Du Vigneaud

Isolation of a Crystalline Derivative of Pantothenic Acid, pp. 245-246
D. W. Woolley

The Structure of Pantothenic Acid, p. 246
Roger J. Williams; Randolph T. Major

Preliminary Studies on Mating Reactions of Enucleate Fragments of Paramecium Bursaria, pp. 246-247
Vance Tartar; Tze-Tuan Chen

Scientific Apparatus and Laboratory Methods

A Method of Substituting Pine Sapwood for Malt Agar in Culturing Test Fungi, pp. 247-248
Ernest E. Hubert

Filing Photographic Copies of Articles, p. 248
Elma T. Evans; R. Max Goepp

Science News, pp. 8-10

Previous Issue: New Series, Vol. 91, No. 2357, Mar. 1, 1940
Next Issue: New Series, Vol. 91, No. 2359, Mar. 15, 1940

Science, New Series, Vol. 91, No. 2359, Mar. 15, 1940

Previous Issue: New Series, Vol. 91, No. 2358, Mar. 8, 1940
Next Issue: New Series, Vol. 91, No. 2360, Mar. 22, 1940

Front Matter (12 pp.)

The American Association for the Advancement of Science

The Nation and Petroleum Geology To-Day, pp. 249-252
Hugh D. Miser

The Case against the Cell Theory, pp. 252-255
Basile J. Luyet

Obituary

Royal Norton Chapman, pp. 255-256
Walter Carter

Recent Deaths and Memorials, p. 257

Scientific Events

The British Advisory Council on Scientific Research and Technical Development, p. 257
The Practice of Medicine and the Sherman Anti-Trust Law, pp. 257-258
The Quarterly Journal of Studies on Alcohol, p. 258
The Chemist Advisory Council, pp. 258-259
The Herzstein Lectures, p. 259
Summer Meetings of Ecologists, p. 259

Scientific Notes and News, pp. 259-262

Discussion

Conifer Inflorescence Again, pp. 262-263
G. R. Wieland

Natural Occurrence of Tularemia in Beaver and Its Transmission to Man, pp. 263-264
John W. Scott

Systematic Histoplasmosis in the United States, p. 264
J. D. Reid; J. H. Scherer; H. Irving

Scientific Publications Needed in France, pp. 264-265
Alan Gregg

Scientific Books

Chemistry, pp. 265-266
A History of Chemistry
F. J. Moore

Review author[s]: C. A. Browne

Bacterial Metabolism, pp. 266-267
Bacterial Metabolism
Majory Stephenson

Review author[s]: J. Howard Mueller

Special Articles

A Kinesthetically Controlled Maze Habit in the Rat, pp. 267-269
Walter S. Hunter

A Radioactive Isotope Study of the Absorption of Phosphorus and Sodium by Corn Seedlings, pp. 269-270
A. Keith Brewer; Arthur Bramley

A Method of Studying the Availability of Various Substrates for Human Brain Metabolism during Therapeutic Insulin Shock, pp. 270-271
Joseph Wortis; Walter Goldfarb

Scientific Apparatus and Laboratory Methods

Eggshell Cap Method of Incubating Chick Embryos, pp. 271-272
John W. Price; Ernest V. Fowler

A Supplementary Method for the Study of Arachno-Pia, p. 272
A. E. Taft

Science News, pp. 10+12-13
Back Matter (1 p.)

Previous Issue: New Series, Vol. 91, No. 2358, Mar. 8, 1940
Next Issue: New Series, Vol. 91, No. 2360, Mar. 22, 1940

Science, New Series, Vol. 91, No. 2360, Mar. 22, 1940

Previous Issue: New Series, Vol. 91, No. 2359, Mar. 15, 1940
Next Issue: New Series, Vol. 91, No. 2361, Mar. 29, 1940

Front Matter (9 pp.)
The Currents of the Pacific Ocean and Their Bearing on the Climates of the Coasts, pp. 273-282
H. U. Sverdrup

Obituary

Edwin Morrison, pp. 282-283
C. W. Chapman; O. L. Snow

Wilfred August Welter, p. 283
A Correspondent

Recent Deaths, p. 283

Scientific Events

The Inventions Board of the Canadian Government, pp. 283-284
Expedition to the Caribbean, p. 284
Timepieces of the James Arthur Collection at New York University, pp. 284-285
The Gray Herbarium of Harvard University, p. 285
The Associated Hospital Service of New York City, pp. 285-286
The Theft of Research Microscopes from the Biological Laboratory, Amherst College, p. 286
Officers of the Federation of American Societies for Experimental Biology, p. 286

Scientific Notes and News, pp. 286-289

Discussion

Changes in Modern Mathematics, pp. 289-290
G. A. Miller

The Chestnut Blight and Its Relation to the Principle of Disease Resistance, pp. 290-291
Arthur Pierson Kelley

The "Baboon Boy" of South Africa, pp. 291-292
John P. Foley

A Correction, p. 292
Douglas Johnson

Unusual Easter Dates, p. 292
Alexander Pogo

Scientific Books

Land Mollusca of North America, pp. 292-293
Land Mollusca of North America (North of Mexico)
Henry A. Pilsbry

Review author[s]: Paul Bartsch

Biological Oxidation, p. 294
Biological Oxidation
Carl Oppenheimer; Kurt G. Stern

Review author[s]: L. Michaelis

Reports

Radioactive Standards, pp. 294-295
L. F. Curtiss; Clark Goodman; Alois F. Kovarik; S. C. Lind; C. S. Piggot; Robley D. Evans

Special Articles

Reversible Inhibition of Tobacco Mosaic Virus in Living Cells with 0.0002 Molar Sodium Cyanide, pp. 295-296
Mark W. Woods

Further Note on the Existence of a Respiratory Neurohormone, pp. 297-298
Theodore Koppanyi; Charles R. Linegar

Sarcomata and Carcinomata Induced in Cottontail Rabbits by Methylcholanthrene, p. 298
Jerome T. Syverton; George Packer Berry

Sex Differences in the Structure of Bowman's Capsule in the Mouse, p. 299
Charlotte Crabtree

Scientific Apparatus and Laboratory Methods

Hay Ventilation, pp. 299-300
Maynard S. Grunder

Organic Mercury Derivatives of Basic Triphenylmethane Dyes, p. 300
Lyman Chalkley

Science News, pp. 8-10

Previous Issue: New Series, Vol. 91, No. 2359, Mar. 15, 1940
Next Issue: New Series, Vol. 91, No. 2361, Mar. 29, 1940

Science, New Series, Vol. 91, No. 2361, Mar. 29, 1940

Previous Issue: New Series, Vol. 91, No. 2360, Mar. 22, 1940
Next Issue: New Series, Vol. 91, No. 2362, Apr. 5, 1940

Front Matter (12 pp.)
Episodes and Personalities in the Development of Biology at Brown, pp. 301-305
A. D. Mead

Functions of the Preclinical Sciences in Medical Education, pp. 305-308
Magnus Ingstrup Gregersen

Scientific Events

New Fellows of the Royal Society of Edinburgh, p. 308
The Detroit Center of the University of Michigan, pp. 308-309
Paleontological Expedition of the National Geographic Society and the South Dakota State School of Mines, p. 309
The Institute of Food Technologists, pp. 309-310
Recent Deaths, p. 310

Scientific Notes and News, pp. 310-312

Discussion

Varieties of Triticum Vulgare Practically Immune in All Stages of Growth to Stem Rust, p. 313
R. F. Peterson; T. Johnson; Margaret Newton

Fresh-Water Jellyfish in Hawaii, pp. 313-314
C. H. Edmondson

Reappearance of an Ancient Absurdity regarding Magnets, pp. 314-315
L. W. McKeehan; Watson Davis

Roger Bacon was Mistaken, p. 315
Joseph O. Thompson

Scientific Books

Political Geography, pp. 315-316
The Earth and the State, A Study in Political Geography
Derwent Whittlesey

Review author[s]: Preston E. James

Naturalists in South America, pp. 316-317
The Great Naturalists Explore South America
Paul R. Cutright

Review author[s]: Albert M. Reese

Reports

The New International Commission of Snow and Glaciers, pp. 317-318
Francois E. Matthes

Special Articles

Mobilization of Vitamin A from Its Stores in the Tissues by Ethyl Alcohol, pp. 318-319
Samuel W. Clausen; William S. Baum; Augusta B. McCoord; John O. Rydeen; Burtis B. Breese

The Isolation of Phytin from Soil, pp. 319-320
W. J. Dyer; C. L. Wrenshall; G. R. Smith

On the Nature of the Leukocytosis-Promoting Factor of Inflammatory Exudates, pp. 320-321
Valy Menkin

Scientific Apparatus and Laboratory Methods

A New Technic for Staining Vaginal Smears, pp. 321-322
Ephraim Shorr

A Rubber Cast of the Dogfish Spiral Valve, p. 322
K. D. Roeder

Science News, pp. 10+12-13
Back Matter (3 pp.)

Previous Issue: New Series, Vol. 91, No. 2360, Mar. 22, 1940
Next Issue: New Series, Vol. 91, No. 2362, Apr. 5, 1940

Science, New Series, Vol. 91, No. 2362, Apr. 5, 1940

Previous Issue: New Series, Vol. 91, No. 2361, Mar. 29, 1940
Next Issue: New Series, Vol. 91, No. 2363, Apr. 12, 1940

Front Matter (13 pp.)

The Nobel Prize in Physics

Presentation of the Nobel Prize to Professor Ernest O. Lawrence, pp. 323-329
Raymond T. Birge

Response, pp. 329-330
Ernest O. Lawrence

Obituary

Ferdinand Ellerman, pp. 330-331
Walter S. Adams

Recent Deaths, p. 331

Scientific Events

The Medical School of the University of Queensland, p. 331
Gifts and Bequests to American Colleges and Universities, p. 332
The Catskill Meeting of the New York State Geological Association, p. 332
The Ledyard Fellowship Awards of the New York Hospital, pp. 332-333
The Twelfth Annual Science Fair of the American Institute, p. 333
Meetings of the American Society of Mechanical Engineers, p. 333

Scientific Notes and News, pp. 334-336

Discussion

Laboratory Chimpanzees, pp. 336-337
Robert M. Yerkes

The Relations of Soils and Surface in the South Carolina Piedmont, pp. 337-338
D. Hoye Eargle

Boron Deficiencies in Connecticut, p. 338
B. A. Brown

Receipt of European Journals during the War, pp. 338-339
Watson Davis

Scientific Books

Sedimentation, pp. 339-340
Principles of Sedimentation
W. H. Twenhofel

Review author[s]: Percy E. Raymond

Submarine Canyons, p. 340
The Origin of Submarine Canyons
Douglas Johnson

Review author[s]: Kirtley F. Mather

A New German Science Dictionary, p. 340
German-English Science Dictionary for Students in the Agricultural, Biological and Physical Sciences
Louis De Vries

Review author[s]: Harold Kenneth Fink

Societies and Meetings

Pennsylvania Academy of Science, pp. 340-341
Bradford Willard

Special Articles

Bisulfite Binding Substances (B.B.S.) and Thiamin Deficiency, p. 341
Maurice Shils; Harry G. Day; E. V. McCollum

A New Method for Studying the Properties of Lubricating Oils Based on the Use of a New Instrument, pp. 341-342
P. Lecomte Du Noüy

Autophagia in Rats Traumatized during Inanition, pp. 342-343
Carroll Blue Nash

Scientific Apparatus and Laboratory Methods

Some Uses of Vacuum in Micrology, pp. 343-344
Robert T. Hance; Ralph L. Chermock

A Method for Preserving Trypanosoma Equiperdum, p. 344
Wm. S. Stone; Arvo T. Thompson

Science News, pp. 10+12+14
Back Matter (2 pp.)

Previous Issue: New Series, Vol. 91, No. 2361, Mar. 29, 1940
Next Issue: New Series, Vol. 91, No. 2363, Apr. 12, 1940

Science, New Series, Vol. 91, No. 2363, Apr. 12, 1940

Previous Issue: New Series, Vol. 91, No. 2362, Apr. 5, 1940
Next Issue: New Series, Vol. 91, No. 2364, Apr. 19, 1940

Front Matter (13 pp.)
The Present Status and Problems of Bacterial Chemotherapy, pp. 345-350
E. K. Marshall

Scientific Events

The Engineering Societies Library, pp. 350-351
The Summer Meetings of the American Society of Plant Physiologists, p. 351
J. Van Overbeek

Westinghouse Research Fellowships, p. 351
Election of Fellows of the Royal Society, p. 352
The Eighth American Scientific Congress, pp. 352-353
Recent Deaths and Memorials, pp. 353-354

Scientific Notes and News, pp. 354-356

Discussion

A Tiger Shark and a Basking Shark Rammed by Steamers, pp. 356-357
E. W. Gudger

Apparent Splitting of Light from Fluorescent Lamps into Component Parts by Moving Objects, pp. 357-358
C. Wesler Scull; Charles G. Grosscup; E. G. Witting

Biography of Dr. William H. Park, p. 358
Wade W. Oliver

Quotations

The End of "Discovery", pp. 358-359

Scientific Books

Recent Botanical Books, pp. 359-361
Botany
William J. Robbins; Harold W. Rickett

Floral Morphology
E. R. Saunders

Basic Course in Botany
Raymond J. Pool

Edible Wild Plants
Oliver Perry Medsger

Poisonous Plants of the United States
Walter Conrad Muenscher

Review author[s]: Edwin B. Matzke

Reports

Report of the Banting Research Foundation for the Year 1938-1939, pp. 362-363
V. E. Henderson; A. W. Ham

Special Articles

The Effect of Thiol Compounds on Gonadotrophins, pp. 363-365
H. L. Fraenkel-Conrat; Miriam E. Simpson; Herbert M. Evans

The Synthesis of Phosphopyruvic Acid on Oxidation of Lactic Acid, pp. 365-366
D. L. Ferdman; S. F. Epstein

Chemotherapy in Experimental Infections Caused by Streptobacillus moniliformis, pp. 366-367
Fordyce R. Heilman

Scientific Apparatus and Laboratory Methods

Patterns on Maps and Drawings by the Carbon Transfer Process, pp. 367-368
C. W. Thornthwaite; C. F. Stewart Sharpe

Science News, pp. 10+12+14

Previous Issue: New Series, Vol. 91, No. 2362, Apr. 5, 1940
Next Issue: New Series, Vol. 91, No. 2364, Apr. 19, 1940

Science, New Series, Vol. 91, No. 2364, Apr. 19, 1940

Previous Issue: New Series, Vol. 91, No. 2363, Apr. 12, 1940
Next Issue: New Series, Vol. 91, No. 2365, Apr. 26, 1940

Front Matter (13 pp.)
Recent Advances in Chemotherapy, pp. 369-373
M. L. Crossley

Lo, the Poor Whale!, pp. 373-376
Robert Cushman Murphy

Obituary

Friedrich Emich: 1860-1940, pp. 376-377
Joseph B. Niederl

Recent Deaths and Memorials, p. 377

Scientific Events

Publication of a New Physiological Journal in Scandinavia, p. 377
Award of Guggenheim Fellowships, pp. 377-379
The Finney-Howell Research Foundation, Inc., p. 379
The Industrial Research Institute, p. 379
The Bicentennial Week Celebration of the University of Pennsylvania, pp. 379-380

Scientific Notes and News, pp. 380-382

Discussion

A Chytrid in Relation to Chlorotic Streak Disease of Sugar-Cane, pp. 382-383
C. W. Carpenter

The Genus Listerella Pirie, p. 383
J. Harvey Pirie

Scientific Conscience, pp. 383-384
I Bernard Cohen

"Roger Bacon was Mistaken", pp. 384-385
Fernando Sanford; M. W. Lyon; G. Wakeham

Scientific Books

The Theory of Numbers, p. 385
Modern Elementary Theory of Numbers
Leonard Eugene Dickson

Review author[s]: A. E. Ingham

A Mathematical Classic, p. 385
Topological Groups
L. Pontrjagin

Review author[s]: Garrett Birkhoff

Reports

The Engineering Foundation, pp. 386-387

Special Articles

Anthelmintic Activity of Crystalline Papain, pp. 387-388
Julius Berger; Conrado F. Asenjo

Conversion of Estradiol to Estrone in Vivo, p. 388
William R. Fish; Ralph I. Dorfman

Tomato Pomace in the Diet, pp. 388-389
Clive M. McCay; S. E. Smith

Scientific Apparatus and Laboratory Methods

The Preparation of Purified House-Dust Extracts, pp. 389-390
Charlotte H. Boatner; B. G. Efron; R. I. Dorfman

A Labor-Saving Technique for Leaf Samples in Histological Work, p. 390
William E. Gordon

Science News, pp. 10+12+14
Back Matter (2 pp.)

Previous Issue: New Series, Vol. 91, No. 2363, Apr. 12, 1940
Next Issue: New Series, Vol. 91, No. 2365, Apr. 26, 1940

Science, New Series, Vol. 91, No. 2365, Apr. 26, 1940

Previous Issue: New Series, Vol. 91, No. 2364, Apr. 19, 1940
Next Issue: New Series, Vol. 91, No. 2366, May 3, 1940

Front Matter (10 pp.)

The American Association for the Advancement of Science

Some Soil Factors Affecting Tree Growth, pp. 391-398
Robt. M. Salter

Scientific Events

Mathematical Symposium at the University of Notre Dame, pp. 398-399
Karl Menger

Centennial Celebration of the Founding of the Department of Chemistry of Western Reserve University, pp. 399-400
O. F. Tower

Appointments in the Regional Laboratories of the U. S. Department of Agriculture, p. 400
The Eighth American Scientific Congress, pp. 400-401

Scientific Notes and News, pp. 401-404

Discussion

The Question of the Cell Theory, pp. 404-405
John P. Turner

"Electricity Elicited by an Organic Chemical Process", pp. 405-406
D. Nachmansohn

Again Science in China, p. 406
George W. Hunter

The Programs of Scientific Meetings, p. 406
C. B. Mendenhall

Reports

Pure and Applied Science Research at Mellon Institute, 1939-40, pp. 407-410
W. A. Hamor

Special Articles

Factors Affecting the Insulin Content of Pancreas, p. 410
R. E. Haist; C. H. Best

Toxicity of Extracts of the Postpartum Rabbit Uterus, pp. 410-411
Boris Krichesky; William Pollock

The Biological Activity of Synthetic Pantothenic Acid, p. 411
Harry H. Weinstock; Aaron Arnold; Everette L. May; Donald Price

Scientific Apparatus and Laboratory Methods

Improvements in the Harvard Spring Kymograph, p. 412
Hugh B. McGlade

A Plastic Cover Glass, Isobutyl Methacrylate, p. 412
Harold C. O'Brien; Robert T. Hance

Science News, pp. 8+10-11
Back Matter (1 p.)

Previous Issue: New Series, Vol. 91, No. 2364, Apr. 19, 1940
Next Issue: New Series, Vol. 91, No. 2366, May 3, 1940

Science, New Series, Vol. 91, No. 2366, May 3, 1940

Previous Issue: New Series, Vol. 91, No. 2365, Apr. 26, 1940
Next Issue: New Series, Vol. 91, No. 2367, May 10, 1940

Front Matter (10 pp.)

The National Academy of Sciences

Presentation of the Agassiz Medal to Frank Rattray Lillie, pp. 413-414
Edwin G. Conklin

Response by the Medalist, pp. 414-416
Frank Rattray Lillie

Presentation of the Public Welfare Medal to John Edgar Hoover, p. 416
Max Mason

Response by the Medalist, pp. 416-417
John Edgar Hoover

Presentation of the Charles Doolittle Walcott Medal and Honorarium to A. H. Westergaard, pp. 417-418
C. G. Abbot

Abstracts of Papers, pp. 418-423

Obituary

David M. Mottier, pp. 423-424
Ralph E. Cleland

Recent Deaths and Memorials, pp. 424-425

Scientific Events

The Colorado Rocky Mountain Observatory of Harvard University, p. 425
Fellows of the Lalor Foundation, pp. 425-426
The William Lowell Putnam Mathematical Competition Awards, p. 426
Symposium in Theoretical Physics at the University of Michigan, pp. 426-427
The Section of Public Health and Medicine of the American Scientific Congress, p. 427
Elections of the National Academy of Sciences, pp. 427-428

Scientific Notes and News, pp. 428-431

Discussion

Vitamin L and Filtrate Factor, p. 431
Waro Nakahara; Fumito Inukai; Saburo Ugami

The Attempted Characterization of Malignant Tissue Protein with D-Amino Acid Oxidase, pp. 431-432
L. Earle Arnow; Jeanette C. Opsahl

The Peace Resolution of the American Association of Scientific Workers, p. 432
Robert S. Mulliken

Scientific Books

The Stone Age of Mount Carmel, pp. 432-433
The Stone Age of Mount Carmel
Theodore D. McCown; Arthur Keith

Review author[s]: Loren C. Eiseley

Sokolnikoff's Advanced Calculus, pp. 433-434
Advanced Calculus
I. S. Sokolnikoff

Review author[s]: Albert A. Bennett

Societies and Meetings

Special Research Conferences on Chemistry, pp. 434-435

Special Articles

Syntheses of Model Unsaturated Lactones Related to the Cardiac Aglycones, pp. 435-436
Josef Fried; Martin Rubin; Walter D. Paist; Robert C. Elderfield

Nature of the Pasteur Enzyme, p. 436
Kurt G. Stern; Joseph L. Melnick; Delafield DuBois

Prolificacy of Rats Treated with Mare Gonadotropic Hormone, pp. 436-437
H. H. Cole

Scientific Apparatus and Laboratory Methods

An Adaptable Rotating Unit for Roller Tube Tissue Cultures, pp. 437-438
Lawrence H. Ott; Robert Tennant; Averill A. Liebow

A Personal File of Geologic Photographs, p. 438
Chester K. Wentworth

Science News, pp. 8+10-11
Back Matter (1 p.)

Previous Issue: New Series, Vol. 91, No. 2365, Apr. 26, 1940
Next Issue: New Series, Vol. 91, No. 2367, May 10, 1940

Science, New Series, Vol. 91, No. 2367, May 10, 1940

Previous Issue: New Series, Vol. 91, No. 2366, May 3, 1940
Next Issue: New Series, Vol. 91, No. 2368, May 17, 1940

Front Matter (12 pp.)
Washington Assembly of the International Union of Geodesy and Geophysics and the American Geophysical Union, pp. 439-442
J. A. Fleming

Scientific Events

Report of the Brooklyn Botanic Garden, pp. 442-443
Expeditions of the Smithsonian Institution, p. 443
Research Grants of the American College of Dentists, p. 443
Annual Meetings of the Minnesota and South Carolina Academies of Science, p. 444
In Memory of Elizabeth Gertrude Knight Britton, p. 444
Recent Deaths and Memorials, pp. 444-445

Scientific Notes and News, pp. 445-447

Discussion

Pacific Salmon Not Established in Atlantic Waters, pp. 447-449
A. G. Huntsman; J. R. Dymond

Glauconite Pseudomorphs after Ophiuran Plates, p. 449
Charles T. Berry

Bog Levels, pp. 449-450
Frank C. Gates

Hurricane Intelligence, p. 450
H. N. Glick

Lunar Rainbows in Honolulu, p. 450
Walter Alvarez

Scientific Books

Another Inventor of the Calculus?, pp. 450-452
James Gregory, Tercentenary Memorial Volume
Herbert Western Turnbull

Review author[s]: E. T. Bell

Reports

Summer Conferences at the Massachusetts Institute of Technology, pp. 452-454

The National Academy of Sciences

Abstracts of Papers, pp. 454-457

Special Articles

Alleged Gonadotropic Effect of Royal Jelly, pp. 457-458
R. M. Melampy; A. J. Stanley

Crystalline Drosophila Eye-Color Hormone, p. 458
E. L. Tatum; G. W. Beadle

Effect of Emanations from Several Species of Fungi on Respiration and Color Development of Citrus Fruits, pp. 458-459
J. B. Biale

Scientific Apparatus and Laboratory Methods

A Convenient Apparatus for the Manipulation of Eggs in the Study of the Chorio-Allantoic Membrane, pp. 459-460
Rachel E. Hoffstadt; Dorothy Omundson

A Tube for Nitrogen Purification, p. 460
A. B. Garrett; Ray Heiks

Science News, pp. 10+12-13
Back Matter (3 pp.)

Previous Issue: New Series, Vol. 91, No. 2366, May 3, 1940
Next Issue: New Series, Vol. 91, No. 2368, May 17, 1940

Science, New Series, Vol. 91, No. 2368, May 17, 1940

Previous Issue: New Series, Vol. 91, No. 2367, May 10, 1940
Next Issue: New Series, Vol. 91, No. 2369, May 24, 1940

Front Matter (10 pp.)

American Association for the Advancement of Science

Preliminary Announcement of the Seattle Meeting, pp. 461-468
F. R. Moulton

Obituary

Dr. Glenn E. Cullen, pp. 468-469
Howard W. Robinson

Recent Deaths and Memorials, p. 469

Scientific Events

The British Association, pp. 469-470
The American Standards Association and the U. S. Treasury Department, p. 470
The National Farm Youth Foundation, pp. 470-471
Medical Fellowships of the National Research Council, p. 471
Medal Day of the Franklin Institute, p. 471
The American Academy of Arts and Sciences, pp. 471-472
The American Philosophical Society, pp. 472-473

Scientific Notes and News, pp. 473-476

Discussion

Color Effects Observable from Fluorescent Lamps, p. 476
Gorton R. Fonda

Mercury Poisoning, pp. 476-477
Arthur C. Giese

Is Sulfanilamide Bacteriostatic under "Anaerobic" Conditions?, pp. 477-478
Charles L. Fox

An Illustrated Catalogue of Mesozoic and Early Cenozoic Plants of North America, p. 478
Erling Dorf

The Peace Resolution of Scientific Workers, pp. 478-479
Peyton Rous

The National Academy of Sciences

Abstracts of Papers, pp. 479-481

Reports

Appropriations of the Rockefeller Foundation for the Medical and Natural Sciences in 1939, pp. 482-483

Special Articles

Association of the Heterogenetic Antigen with a Material in Normal and Tumor Tissues Sedimentable at High Speed, pp. 483-485
Jacob Furth; Elvin A. Kabat

Electrophoretic Analyses of Hyperimmune Sera, pp. 485-486
J. Van Der Scheer; Ralph W. G. Wyckoff

On the Urinary Excretion of "Free" Sulfapyridine, p. 486
John V. Scudi

Science News, pp. 8+10-11
Back Matter (1 p.)

Previous Issue: New Series, Vol. 91, No. 2367, May 10, 1940
Next Issue: New Series, Vol. 91, No. 2369, May 24, 1940

Science, New Series, Vol. 91, No. 2369, May 24, 1940

Previous Issue: New Series, Vol. 91, No. 2368, May 17, 1940
Next Issue: New Series, Vol. 91, No. 2370, May 31, 1940

Front Matter (11 pp.)
Considerations concerning the Fundaments of Theoretical Physics, pp. 487-492
Albert Einstein

A Complex Vaccine Effective against Different Strains of Influenza Virus, pp. 492-494
Frank L. Horsfall; Edwin H. Lennette

Obituary

Maynard Mayo Metcalf, pp. 494-495
Robert A. Budington

Recent Deaths, p. 495

Scientific Events

The Annual Report of the Field Museum of Natural History, pp. 495-496
The Structural Steel Welding Research Committee of the Engineering Foundation, pp. 496-497
The Chicago Meeting of the Institute of Food Technologists, p. 497
Exhibition of the Works of Leonardo Da Vinci, pp. 497-498

Scientific Notes and News, pp. 498-501

Discussion

Release of Acetylcholine by Sympathetic Ganglia and Synaptic Transmission, pp. 501-503
Rafael Lorente De Nó

Postscript to ``Roger Bacon was Mistaken'', pp. 503-504
Joseph O. Thompson

A Counter-Statement, pp. 504-505
A. H. Sturtevant

Scientific Books

Embryology, pp. 505-507
The Rise of Embryology
Arthur William Meyer

Review author[s]: Howard B. Adelmann

Special Articles

Alcohol Taste Thresholds and Concentrations of Solution Preferred by Rats, pp. 507-508
Curt P. Richter; Kathryne H. Campbell

The Synthesis of Nicotinic Acid in the Body of Sheep, pp. 508-509
A. H. Winegar; P. B. Pearson; H. Schmidt

Breakdown of Sulfanilamide Molecule by Ultra-Violet Irradiation or Chemical Oxidation, p. 509
Sanford M. Rosenthal; Hugo Bauer

Scientific Apparatus and Laboratory Methods

A Speedier and Less Costly Method of Concentration in Nitrocellulose Imbedding, pp. 509-510
Henry Wilhelm Jensen

An Inexpensive Microphotographic Camera, p. 510
E. M. Abrahamson

Science News, pp. 8+10+12
Back Matter (2 pp.)

Previous Issue: New Series, Vol. 91, No. 2368, May 17, 1940
Next Issue: New Series, Vol. 91, No. 2370, May 31, 1940

Science, New Series, Vol. 91, No. 2370, May 31, 1940

Previous Issue: New Series, Vol. 91, No. 2369, May 24, 1940
Next Issue: New Series, Vol. 91, No. 2371, Jun. 7, 1940

Front Matter (10 pp.)
The Eighth American Scientific Congress, pp. 511-514
Austin H. Clark

Nuclear Fission, pp. 514-516
Karl K. Darrow

Scientific Events

Exhibits in the Geological Sciences at the California Institute of Technology, p. 516
The Isle Royale National Park, p. 517
The New Building of the Colorado School of Mines, p. 517
The Delamar Institute of Public Health of Columbia University, pp. 517-518
The Cleveland Meeting of the American Home Economics Association, p. 518
Dedication of the McGregor Building and Telescope of the McMath-Hulbert Observatory of the University of Michigan, p. 519

Scientific Notes and News, pp. 519-522

Discussion

The Occurrence of Anopheles Darlingi Root in British Honduras and Guatemala, pp. 522-523
W. H. W. Komp

Soils and Periglacial Phenomena in the Carolinas, pp. 523-524
Kirk Bryan

Direction Finding at 1.67-Meter Waves, p. 524
Luke C. L. Yuan

Color Flicker in Fluorescent Lamps, pp. 524-525
R. N. Thayer

The Length of Development of the Greater Wax Moth, p. 525
Mykola H. Haydak

The Peace Resolution of Scientific Workers, pp. 525-526
A. J. Carlson; Robert S. Mulliken

Quotations

The New York Session of the American Medical Association, p. 526

Scientific Books

Orthogonal Polynomials, pp. 526-527
Orthogonal polynomials
Gabor Szegö

Review author[s]: Dunham Jackson

Mathematical Methods in Engineering, pp. 527-528
Mathematical Methods in Engineering. An Introduction to the Mathematical Treatment of Engineering Problems
Theodore v. Karman; Maurice Biot

Review author[s]: R. v. Mises

Special Articles

The Centriole in Radiated Tumor Tissue, pp. 528-529
Lloyd C. Fogg; Shields Warren

The Oxyhydrogen Reaction in Green Algae and the Reduction of Carbon Dioxide in the Dark, pp. 529-530
H. Gaffron

Inactivation of Pituitary Lactogenic Hormone by Iodine, pp. 530-531
Choh Hao Li; William R. Lyons; Miriam E. Simpson; Herbert M. Evans

Scientific Apparatus and Laboratory Methods

Mesostoma Ehrenbergii Wardii for the Study of the Turbellarian Type, pp. 531-532
T. K. Ruebush

A Stable Thromboplastin for Use in Quick's Prothrombin Test, p. 532
Alexander W. Souter; Robert Kark; F. H. L. Taylor

Science News, pp. 8+10-11
Back Matter (1 p.)

Previous Issue: New Series, Vol. 91, No. 2369, May 24, 1940
Next Issue: New Series, Vol. 91, No. 2371, Jun. 7, 1940

Science, New Series, Vol. 91, No. 2371, Jun. 7, 1940

Previous Issue: New Series, Vol. 91, No. 2370, May 31, 1940
Next Issue: New Series, Vol. 91, No. 2372, Jun. 14, 1940

Front Matter (12 pp.)
Progress in Petroleum, pp. 533-538
Gustav Egloff

Obituary

Wilfred Thomas Dawson, pp. 538-539
Charles H. Taft

Recent Deaths, p. 539

Scientific Events

A Symposium on Hydrobiology at the University of Wisconsin, p. 539
The Seventy-First Annual Report of the American Museum of Natural History, pp. 539-540
The Eighth Summer Conference on Applied Spectroscopy at the Massachusetts Institute of Technology, p. 540
The Bicentennial Conference of the University of Pennsylvania, pp. 540-541

Scientific Notes and News, pp. 541-543

Discussion

A Major Cycle in Insect Flights, p. 544
J. Manson Valentine

Calcium Carbonate Deposits Marginal to Glaciers, pp. 544-545
John C. Ludlum

Compound Words in Scientific Nomenclature, pp. 545-546
Alice Morton Ball

Leonardo Da Vinci on Isostasy, pp. 546-547
John P. Delaney

Joseph Louis Lagrange, p. 547
George Sarton

Quotations

International Cooperation in Science, pp. 547-548

Societies and Meetings

The Kansas Academy of Science, pp. 548-549
Roger C. Smith

The Iowa Academy of Science, p. 549
Joseph C. Gilman

The Virginia Academy of Science, pp. 549-550
E. C. L. Miller

Reports

The Report on Biological Abstracts for 1939, pp. 550-551
Board of Trustees

Special Articles

The Synthesis of Glycocyamine in Rat Kidney and a Mechanism of Creatine Synthesis in Vivo, pp. 551-552
Henry Borsook; Jacob W. Dubnoff

Nutrition as a Factor in the Development of Constitutional Barriers to Involvement of the Nervous System by Certain Viruses, pp. 552-554
Albert B. Sabin; Carl E. Duffy

Effect of Estrogens and Androgens Alone and in Combination with Chorionic Gonadotropin on the Ovary of the Hypophysectomized Rat, pp. 554-555
Richard I. Pencharz

Scientific Apparatus and Laboratory Methods

Microfilm with the 35-Millimeter Candid Camera, pp. 555-556
J. David Reid

Science News, pp. 10+12-13
Back Matter (1 p.)

Previous Issue: New Series, Vol. 91, No. 2370, May 31, 1940
Next Issue: New Series, Vol. 91, No. 2372, Jun. 14, 1940

Science, New Series, Vol. 91, No. 2372, Jun. 14, 1940

Previous Issue: New Series, Vol. 91, No. 2371, Jun. 7, 1940
Next Issue: New Series, Vol. 91, No. 2373, Jun. 21, 1940

Front Matter (9 pp.)
Minute Amounts of Chemical Elements in Relation to Plant Growth, pp. 557-560
D. R. Hoagland

Science in General Education at the College Level, pp. 560-565
Lloyd W. Taylor

Scientific Events

Conferences in Biochemistry at the University of Chicago, p. 565
Honorary Degrees Conferred by New York University, pp. 565-567
Honorary Degrees Conferred by Columbia University, p. 567
Dinner in Honor of Professor McClung, pp. 567-568
Recent Deaths, p. 568

Scientific Notes and News, pp. 568-571

Discussion

Fundamental Laws of Operations in Mathematics, pp. 571-572
G. A. Miller

Stability in Nomenclature, pp. 572-573
A. C. Smith

Aneuploidy in a Hepatic Species, p. 573
G. B. Wolcott

Eating of Bone by the Pregnant and Lactating Gray Squirrel, p. 573
A. J. Carlson

Scientific Books

Cosmic Rays, pp. 574-575
Cosmic Rays
R. A. Millikan

Review author[s]: Gordon Ferrie Hull

Non-Uniform Gases, p. 575
The Mathematical Theory of Non-Uniform Gases
S. Chapman; T. G. Cowling

Review author[s]: William Phelps Allis

Societies and Meetings

The North Carolina Academy of Science, pp. 575-576
Bert Cunningham

Special Articles

Biotin (Bios IIB, Vitamin H)--An Essential Growth Factor for Certain Staphylococci, pp. 576-577
J. R. Porter; Michael J. Pelczar

Changes in the Connective Tissue of the Uterus and Vagina of the Rat Associated with Advancing Age, pp. 577-578
J. M. Wolfe; Ethel Burack; Winifred Lansing; A. W. Wright

Radioactive Nitrogen in the Study of N2 Fixation by Non-Leguminous Plants, pp. 578-579
S. Ruben; W. Z. Hassid; M. D. Kamen

Scientific Apparatus and Laboratory Methods

Heparin as an Anticoagulant for Permeability Studies, p. 579
F. R. Hunter; L. D. Stringer; H. D. Weiss

A New Technic for Staining Vaginal Smears: II, pp. 579-580
Ephraim Shorr

Solutions of Chlorophyll in Salt Water, p. 580
John Shafer

Science News, pp. 8-10

Previous Issue: New Series, Vol. 91, No. 2371, Jun. 7, 1940
Next Issue: New Series, Vol. 91, No. 2373, Jun. 21, 1940

Science, New Series, Vol. 91, No. 2373, Jun. 21, 1940

Previous Issue: New Series, Vol. 91, No. 2372, Jun. 14, 1940
Next Issue: New Series, Vol. 91, No. 2374, Jun. 28, 1940

Front Matter (9 pp.)

The American Medical Association

Better Health for America, pp. 581-585
Nathan B. Van Etten

Work of the American Medical Association, pp. 585-588

Scientific Events

Advisory Research Council of the Chemical Society, London, p. 589
Field Work of the U. S. Geological Survey, pp. 589-590
Symposium on Quantitative Biology of the Biological Laboratory, Cold Spring Harbor, p. 590
Honorary Degrees Conferred by Princeton University, pp. 590-591
Recent Deaths and Memorials, p. 591

Scientific Notes and News, pp. 591-594

Discussion

What is a "Pre-Amerindian"?, pp. 594-596
Wm. Duncan Strong

Annual Honorary Junior Membership Awards, p. 596
Otis W. Caldwell; Karl F. Oerlein

Peace Resolution of the American Association of Scientific Workers, pp. 596-597
R. W. Gerard; Francis Bitter; Walter B. Cannon; Arthur L. Cohen; Karl T. Compton; Albert Sprague Coolidge; D. Eugene Copeland; W. J. Crozier; Robert S. Friedman; Robert Galambos; Mark Graubard; Donald R. Griffin; David T. Griggs; Zareh Hadidian; Harold Haskin; William C. Herrington; Hudson Hoagland; David Kaufman; G. B. Kistiakowsky; Walter J. Nickerson; Richard R. Overman; Gregory Pincus; C. B. Purves; Alfred C. Redfield; George Saslow; H. J. Sawin; George T. Scott; Grace D. Sterne; Kenneth V. Thimann; Richard Titherington; George Wald

Scientific Books

Cultural Development, pp. 598-599
Race, Language and Culture
Franz Boas

Review author[s]: Robert H. Lowie

Special Articles

Relative Overgrowth of the Central Nervous System in Vitamin A Deficiency in Young Rats, pp. 599-600
S. B. Wolbach; O. A. Bessey

Effects of Steroid Glycosides and Cortin on Insulin Convulsions and Blood Sugar, pp. 600-602
Raymund L. Zwemer; Kermit L. Pines; Bertrand E. Lowenstein

A Physiologically Active Principle from Cannabis sativa (Marihuana), pp. 602-603
A. J. Haagen-Smit; C. Z. Wawra; J. B. Koepfli; G. A. Alles; G. A. Feigen; A. N. Prater

Scientific Apparatus and Laboratory Methods

On the Use of Chick Embryo Cultures of Influenza Virus in Complement Fixation Tests, pp. 603-604
Clara Nigg; James H. Crowley; Doris E. Wilson

Science News, pp. 8-10

Previous Issue: New Series, Vol. 91, No. 2372, Jun. 14, 1940
Next Issue: New Series, Vol. 91, No. 2374, Jun. 28, 1940

Science, New Series, Vol. 91, No. 2374, Jun. 28, 1940

Previous Issue: New Series, Vol. 91, No. 2373, Jun. 21, 1940
Next Issue: New Series, Vol. 92, No. 2375, Jul. 5, 1940

Volume Information (6 pp.)
Front Matter (7 pp.)
Mixed Catalysts, pp. 605-608
Vladimir N. Ipatieff

Viruses and Their Part in Disease, pp. 608-610
W. G. MacCallum

Obituary

Adrian John Pieters, pp. 610-611
L. W. Kephart

Dr. Erkki Mikkola, pp. 611-612
Richard Foster Flint

Recent Deaths, p. 612

Scientific Events

National Research Fellowships in the Natural Sciences, pp. 612-613
The Washington Heights Health and Teaching Center, pp. 613-614
Nominations for Officers of the American Society of Mechanical Engineers, p. 614
Promotions and Appointments at the Rockefeller Institute for Medical Research, p. 614
Honorary Degrees Conferred by Harvard University, p. 614

Scientific Notes and News, pp. 614-617

Discussion

The Relationship of Histamine to Anaphylaxis in the Rabbit, pp. 617-618
Carl A. Dragstedt; Max Ramirez De Arellano; Alfred H. Lawton

The Utilization of Iron by Anemic Rats, p. 618
Mary S. Rose

The "Baboon Boy" of South Africa, pp. 618-619
John P. Foley

Freezing of Hot and Cold Water, p. 619
Robert S. Casey; Willis R. Whitney

Scientific Books

The Hypothalamus, pp. 619-621
The Hypothalamus and Central Levels of Autonomic Function
John F. Fulton; S. Walter Ranson; Angus M. Frantz

Review author[s]: C. Judson Herrick

Societies and Meetings

The Sixth Washington Conference on Theoretical Physics March 21-23, 1940, pp. 621-623
Edward Teller; M. A. Tuve

Special Articles

Coenzyme I and Riboflavin Content of Livers of Rats Fed Butter Yellow, p. 623
Charles J. Kensler; Kanematsu Suguira; C. P. Rhoads

Bovine Pseudorabies or "Mad Itch" Virus, pp. 623-624
Robert Graham; C. C. Morrill; L. E. Boley

Inhibition of Bacterial Metabolism by Synthetic Detergents, pp. 624-625
Benjamin F. Miller; Zelma Baker

Scientific Apparatus and Laboratory Methods

Ethyl Methacrylate as a Mounting Medium for Embryological Specimens, pp. 625-626
W. O. Puckett

Science News, pp. 6-8

Previous Issue: New Series, Vol. 91, No. 2373, Jun. 21, 1940
Next Issue: New Series, Vol. 92, No. 2375, Jul. 5, 1940

Science, New Series, Vol. 92, No. 2375, Jul. 5, 1940

Previous Issue: New Series, Vol. 91, No. 2374, Jun. 28, 1940
Next Issue: New Series, Vol. 92, No. 2376, Jul. 12, 1940

Volume Information (8 pp.)
Front Matter (4 pp.)
Scientific Research, the Hope of the South, pp. 1-5
George D. Palmer

Scientific Events

Field Program of the Canadian Bureau of Geology and Topography, pp. 5-6
The Cook Observatory, p. 6
The Illinois-Indiana Section of the Society for the Promotion of Engineering Education, pp. 6-7
Officers of the American Institute of Electrical Engineers, p. 7
H. H. Henline

Recent Deaths, p. 7

Scientific Notes and News, pp. 8-10

Discussion

A Possible Explanation of Deep-Focus Quakes, pp. 10-11
Joseph Lynch

Resistance to Sulfanilyl Derivatives in Vitro and in Vivo, p. 11
Jerome S. Harris; Henry I. Kohn

Collecting Subtropical Plants and Animals in Northern Ohio, pp. 11-12
Charles Otto Masters

Collection of Unorthodox Curiosa, p. 12
Albert G. Ingalls

Scientific Books

The Pageant of Electricity, pp. 12-13
The Pageant of Electricity
Alfred P. Morgan

Review author[s]: Gordon Ferrie Hull

Aging, pp. 13-14
Das Problem des Alterns und die Chemie der Lebensvorgange. 2. Auflage
D. Reichinstein

Review author[s]: C. M. McCay

Societies and Meetings

The New Hampshire Academy of Science, p. 14
W. W. Ballard

The New York State Geological Association, p. 14
George H. Chadwick

Special Articles

Alcoholic Fermentation by Fusaria Juice Obtained with a Wet Crushing Mill, p. 15
John C. Wirth; F. F. Nord

The Action of Type-Specific Antibody upon the Pulmonary Lesion of Experimental Pneumococcal Pneumonia, pp. 15-16
W. Barry Wood

Growth Response of Plants to Riboflavin and Ascorbic Acid, p. 17
Raymond Dennison

Scientific Apparatus and Laboratory Methods

The Use of Plastic as a Substitute for Cover Glasses, pp. 17-18
V. Suntzeff; Irene Smith

Erratic Potentials of Electrodes Sealed in Glass Tubing, p. 18
A. B. Garrett; Ernest Hogge; Ray Heiks

Science News, pp. 8+10-11
Back Matter (1 p.)

Previous Issue: New Series, Vol. 91, No. 2374, Jun. 28, 1940
Next Issue: New Series, Vol. 92, No. 2376, Jul. 12, 1940

Science, New Series, Vol. 92, No. 2376, Jul. 12, 1940

Previous Issue: New Series, Vol. 92, No. 2375, Jul. 5, 1940
Next Issue: New Series, Vol. 92, No. 2377, Jul. 19, 1940

Front Matter (2 pp.)
The Time-Scale of the Universe, pp. 19-27
Henry Norris Russell

Scientific Events

The New Chemical Laboratory Building of the University of Pennsylvania, p. 27
The Virginia Junior Academy of Science, pp. 27-28
Summer Work in Botany of the University of Michigan, p. 28
The Brown University Eclipse Expedition, pp. 28-29
Correspondent

The Detroit Meeting of the American Chemical Society, p. 29

Scientific Notes and News, pp. 30-32

Discussion

The Non-Specificity of Amino Acid Configuration in Malignant Tissue Hydrolysates, pp. 32-34
Otto K. Behrens; Fritz Lipmann; Mildred Cohn; Dean Burk

Dioxymaleic Acid Oxidase, pp. 34-35
James B. Sumner; Alexander L. Dounce

The Effect of Growth Substances on the Rooting of Blueberry Cuttings, p. 35
F. B. Chandler; I. C. Mason

The Identity of the Tree "Annedda", p. 35
Charles Macnamara

The Kit Fox, pp. 35-36
C. D. Bunker

Scientific Books

The Social Order, pp. 36-38
Human Nature and the Social Order
E. L. Thorndike

Review author[s]: R. S. Woodworth

Societies and Meetings

The Celebration of the Ohio Academy of Science, pp. 38-40
William H. Alexander

The Illinois State Academy of Science, pp. 40-41
R. F. Paton

Special Articles

Diminishing Response of the Skin to Frequently Repeated Reinfection with Invasive Bacteria, pp. 41-42
F. Duran-Reynals; E. Estrada

Induced Formation of β -Gentiobiosides in Gladiolus Corms and Tomato Plants Treated with Chemicals, pp. 42-43
Lawrence P. Miller

Chemical Examination of the Lipid Fraction of Royal Jelly, p. 43
G. F. Townsend; C. C. Lucas

Scientific Apparatus and Laboratory Methods

Accuracy in Anatomical Drawing, pp. 43-44
Lorus J. Milne

A Simple Artery Clip, p. 44
J. R. DiPalma

Isobutyl Methacrylate as a Mounting Medium for Histological Preparations, p. 44
John Meacham Hamilton

Science News, pp. 5-7
Back Matter (1 p.)

Previous Issue: New Series, Vol. 92, No. 2375, Jul. 5, 1940
Next Issue: New Series, Vol. 92, No. 2377, Jul. 19, 1940

Science, New Series, Vol. 92, No. 2377, Jul. 19, 1940

Previous Issue: New Series, Vol. 92, No. 2376, Jul. 12, 1940
Next Issue: New Series, Vol. 92, No. 2378, Jul. 26, 1940

Front Matter (4 pp.)
The Seattle Meeting of the American Association for the Advancement of Science, pp. 45-50
F. R. Moulton

An Electron Microscope for the Research Laboratory, pp. 51-53
V. K. Zworykin

Scientific Events

The Harvard School of Dental Medicine, pp. 53-54
The Guggenheim Fellowships for Latin Americans, p. 54
Fellowships of the Zoological Society of San Diego, p. 55
Award of Medals of the Royal Geographical Society, p. 55
The New Hampshire Meeting of Mathematicians, pp. 55-56
Recent Deaths, p. 56

Scientific Notes and News, pp. 56-58

Discussion

The Sampling Error of the Median, pp. 58-59
Edwin B. Wilson

The Publication of Isis, pp. 59-60
George Sarton

Zoological Society of London, p. 60
Julian S. Huxley

Scientific Books

Electrical Discharges in Gases, p. 61
Fundamental Processes of Electrical Discharges in Gases
Leonard B. Loeb

Review author[s]: Lewi Tonks

The Ultracentrifuge, pp. 61-62
The Ultracentrifuge
The Svedberg; Kai O. Pedersen

Review author[s]: J. W. Beams

Special Articles

On the Identity of Vitamin H with Biotin, pp. 62-63
Vincent Du Vigneaud; Donald B. Melville; Paul György; Catharine S. Rose

Mobilization of Vitamin A by Alcohol, p. 63
L. B. Pett

Enzymatic Liberation of Auxin from Plant Tissues, p. 64
Folke Skoog; Kenneth V. Thimann

Science News, pp. 6+8-9
Back Matter (1 p.)

Previous Issue: New Series, Vol. 92, No. 2376, Jul. 12, 1940
Next Issue: New Series, Vol. 92, No. 2378, Jul. 26, 1940

Science, New Series, Vol. 92, No. 2378, Jul. 26, 1940

Previous Issue: New Series, Vol. 92, No. 2377, Jul. 19, 1940
Next Issue: New Series, Vol. 92, No. 2379, Aug. 2, 1940

Front Matter (4 pp.)
Remarks on Professions in Medicine, pp. 65-72
Alfred E. Cohn

Scientific Events

The Printing Press of Leonardo Da Vinci, p. 72
Laboratory of the Commission on the Standardization of Biological Stains, p. 73
Meeting of the Pan-American Congress of Ophthalmology at Cleveland, p. 73
Conference on Applied Nuclear Physics, pp. 73-74
Retiring Members of the Faculty of the Ohio State University, p. 74
Recent Deaths, pp. 74-75

Scientific Notes and News, pp. 75-77

Discussion

The Nature of the Intermolecular Forces Operative in Biological Processes, pp. 77-79
Linus Pauling; Max Delbrück

A New Calculation of the C = C Bond Strength and of Certain Resonance Energies, p. 79
Dorothy Wrinch

Avoiding Obvious Residue from Nicotine-Bentonite Sprays, p. 79
C. G. Vinson; S. A. McCrory

Some Results of Colchicine Injections, p. 80
Edna Higbee

Scientific Books

Aviation Medicine, pp. 80-81
Principles and Practice of Aviation Medicine
Harry G. Armstrong

Review author[s]: Yandell Henderson

Societies and Meetings

The Academy Conference, pp. 82-85
S. W. Bilsing

Reports

Grants for Research of the Geological Society of America, pp. 85-88

Special Articles

The Susceptibility of Chicks to Diphtheria Bacilli and Toxin, pp. 88-89
Martin Frobisher

The Anti-Tryptic Properties of Heparin, pp. 89-90
M. K. Horwitt

Glycine--An Essential Factor for the Growth of Bacteriophage, p. 91
Emory L. Ellis; John Spizizen

Scientific Apparatus and Laboratory Methods

Glass Tubes for Rearing Phlebotomus and Other Insects, pp. 91-92
Marshall Hertig

The Administration of Drugs to Rats, p. 92
Dorothy Nelson

Keep Bottle-Tops Free from Dust, p. 92
H. F. Pierce

Science News, pp. 6+8-9
Back Matter (2 pp.)

Previous Issue: New Series, Vol. 92, No. 2377, Jul. 19, 1940
Next Issue: New Series, Vol. 92, No. 2379, Aug. 2, 1940

Science, New Series, Vol. 92, No. 2379, Aug. 2, 1940

Previous Issue: New Series, Vol. 92, No. 2378, Jul. 26, 1940
Next Issue: New Series, Vol. 92, No. 2380, Aug. 9, 1940

Front Matter (4 pp.)
Address of the President of the Royal Society, pp. 93-98
William Bragg

Obituary

Haven Metcalf: 1875-1940, pp. 98-99
S. F. Acree

Edward Payson Van Duzee, p. 99
F. M. MacFarland

Recent Deaths, pp. 99-100

Scientific Events

The Hall of Inventions at the World's Fair, p. 100
The American Coordinating Committee on Corrosion, p. 100
Tribute to the Late Dr. W. E. Britton, State Entomologist of Connecticut, pp. 100-101
In Honor of Julius Herman Frandsen, p. 101
Appointment of Dr. Bruno Rossi at Cornell University, pp. 101-102

Scientific Notes and News, pp. 102-105

Discussion

Native and Introduced Land Planarians in the United States, pp. 105-106
L. H. Hyman

Concerning Pure Cultures of Spirillum, pp. 106-107
I. M. Lewis

Oxidation of Sulfanilic and Arsanilic Compounds by Nascent Hydrogen Peroxide, p. 107
Georg Barkan

Scientific Books

The Calculus, pp. 107-108
Introduction to the Calculus
Arnold Dresden

Review author[s]: D. V. Widder

Image Transmission, p. 108
Television--The Electronics of Image Transmission
V. K. Zworykin; G. A. Morton

Review author[s]: C. G. Montgomery

Reports

The American Society of Mechanical Engineers, pp. 108-110
L. F. Z.

Special Articles

Uniformity of the Pain Threshold in Man, pp. 110-112
George A. Schumacher; Helen Goodell; James D. Hardy; Harold G. Wolff

The Utilization of L-Glucose by Mammalian Tissues and Bacteria, pp. 112-113
Harry Rudney

Tularemia Endotoxin, p. 113
Talât Vasfi Öz

Scientific Apparatus and Laboratory Methods

The Thromboplastin Reagent for the Determination of Prothrombin, pp. 113-114
Armand J. Quick

A Stopcock Lubricant for Use with Solvents, Acids or Alkalies, p. 114
P. W. Rohrbaugh

Shadowgraph Recording of Avena Coleoptile Curvatures, p. 114
Harry G. Albaum; Samuel Kaiser

Science News, pp. 8+10-11
Back Matter (1 p.)

Previous Issue: New Series, Vol. 92, No. 2378, Jul. 26, 1940
Next Issue: New Series, Vol. 92, No. 2380, Aug. 9, 1940

Science, New Series, Vol. 92, No. 2380, Aug. 9, 1940

Previous Issue: New Series, Vol. 92, No. 2379, Aug. 2, 1940
Next Issue: New Series, Vol. 92, No. 2381, Aug. 16, 1940

Front Matter (3 pp.)
Marihuana, pp. 115-119
Roger Adams

The Royal Society of Canada, pp. 119-121
D. A. Keys

Scientific Events

Chemistry Exhibits of the Chicago Museum of Science and Industry, p. 122
The Concilium Bibliographicum, p. 122
Inter-American Society of Microbiology, pp. 122-123
F. Duran-Reynals

The American Mining Congress, p. 123
The Los Angeles Meeting of the American Institute of Electrical Engineers, pp. 123-124
Recent Deaths and Memorials, p. 124

Scientific Notes and News, pp. 124-127

Discussion

Bactericidal Filtrates from a Mold Culture, p. 127
Edwin C. White

Antler-Eating by Rodents, pp. 127-128
Angus M. Woodbury

The Eating of Bone by Squirrels, p. 128
A. F. Coventry

Fifty Harvard Graduates, p. 128
Myron Weiss

Scientific Books

Cladocera, p. 129
Studies on the Physiology, Genetics, and Evolution of Some Cladocera
A. M. Banta

Review author[s]: Chancey Juday

Reports

The National Research Council Committee on Mathematical Tables and Aids to Computation, pp. 129-131
Raymond Clare Archibald

Special Articles

Radio-Iron in Plasma Does Not Exchange with Hemoglobin Iron in Red Cells, pp. 131-132
P. F. Hahn; W. F. Bale; J. F. Ross; R. A. Hettig; G. H. Whipple

Viscosity and the Shape of Protein Molecules, pp. 132-133
J. W. Mehl; J. L. Oncley; R. Simha

Scientific Apparatus and Laboratory Methods

An Electronic Relay for Heat Control, pp. 133-134
Albert C. Hall; Lawrence J. Heidt

Inexpensive Microphotographic Records, p. 134
J. F. McClendon

Science News, pp. 8-10

Previous Issue: New Series, Vol. 92, No. 2379, Aug. 2, 1940
Next Issue: New Series, Vol. 92, No. 2381, Aug. 16, 1940

Science, New Series, Vol. 92, No. 2381, Aug. 16, 1940

Previous Issue: New Series, Vol. 92, No. 2380, Aug. 9, 1940
Next Issue: New Series, Vol. 92, No. 2382, Aug. 23, 1940

Front Matter (3 pp.)
The National Roster of Scientific and Specialized Personnel, pp. 135-137
Leonard Carmichael

The Production, Retention and Attraction of American Men of Science, pp. 137-141
E. L. Thorndike

Obituary

John Gerald Fitzgerald, pp. 141-142
R. D. Defries

Recent Deaths and Memorials, p. 142

Scientific Events

Dispersal of Schools of the University of London, p. 142
Expeditions of the American Museum of Natural History, pp. 142-143
The New York Zoological Society, pp. 143-144
Symposium on New Textiles of the American Chemical Society, p. 144
The American Society of Mechanical Engineers, pp. 144-145

Scientific Notes and News, pp. 145-147

Discussion

Insect Cultures Inbred for 200 Generations, pp. 147-148
D. F. Miller

Spontaneous Activity of the Spinal Tadpoles of the Frog and the Toad, p. 148
Ging-Hsi Wang; Tse-Wei Lu

The Case History of a Scientific News Story, pp. 148-150
G. G. Simpson

Societies and Meetings

The Eastern Section of the Seismological Society of America, p. 150
William A. Lynch

The Botanical Conference and Foray at the Allegany School of Natural History, pp. 150-151
Robert B. Gordon

Reports

The William John Gies Award, Research Fellowships and Grants-in-Aid of the American College of Dentists, pp. 151-152
A. L. Midgley

Special Articles

The Voltammetric Determination of Oxygen, pp. 152-154
I. M. Kolthoff; H. A. Laitinen

A Deficiency Disease of Foxes, pp. 154-155
R. G. Green; C. A. Evans

Scientific Apparatus and Laboratory Methods

A Simple Method for Preparing Antigenic Substances from the Typhoid Bacillus, pp. 155-156
John W. Palmer; Tillman D. Gerlough

Science News, pp. 6-8

Previous Issue: New Series, Vol. 92, No. 2380, Aug. 9, 1940
Next Issue: New Series, Vol. 92, No. 2382, Aug. 23, 1940

Science, New Series, Vol. 92, No. 2382, Aug. 23, 1940

Previous Issue: New Series, Vol. 92, No. 2381, Aug. 16, 1940
Next Issue: New Series, Vol. 92, No. 2383, Aug. 30, 1940

Front Matter (3 pp.)
What is Social Science?, pp. 157-162
Edwin B. Wilson

Isostatic Control of Fluctuations of Sea Level, pp. 162-164
Andrew C. Lawson

Obituary

Lee Cleveland Corbett, pp. 164-165
H. P. Gould

Recent Deaths, pp. 165-166

Scientific Events

The Beit Memorial Fellowships, p. 166
The Total Solar Eclipse of October 1, pp. 166-167
The Dedication of the New Oyster Laboratory at Milford, Connecticut, p. 167
Symposium on Hydrobiology at the University of Wisconsin, pp. 167-168
The Optical Society of America, p. 168

Scientific Notes and News, pp. 168-171

Discussion

A Standardization of Osmotic Pressure as a Term, pp. 171-172
H. C. Eyster

Strain Susceptibility to the European Corn-Borer and the Corn-Leaf Aphid in Maize, p. 172
L. L. Huber; G. H. Stringfield

An Experience of General Anesthesia, pp. 172-173
Wm. E. Ritter

The Conquest of Leprosy, p. 173
T. D. A. Cockerell

Scientific Books

The Kosher Code, pp. 173-175
The Kosher Code of the Orthodox Jew
S. I. Levin; Edward A. Boyden

Review author[s]: Harry A. Wolfson; Frederic T. Lewis

Reports

Research Work on Chemotherapy, pp. 176-178
Lowell T. Coggeshall; Leonard H. Cretcher; Lyndon F. Small; Torald H. Sollmann; Marston T. Bogert

Special Articles

The Isolation in Pure Form of the Interstitial Cell-Stimulating (Luteinizing) Hormone of the Anterior Lobe of the Pituitary Gland, pp. 178-180
Theodore Shedlovsky; A. Rothen; R. O. Greep; H. B. Van Dyke; Bacon F. Chow

Synthesis of the Pyridine Analog of Vitamin B1, pp. 180-181
Ann H. Tracy; Robert C. Elderfield

Scientific Apparatus and Laboratory Methods

The Use of Outline Maps on Herbarium Labels, pp. 181-182
Ernst C. Abbe; Donald B. Lawrence

A Spatulate Pipette Serving as Section Lifter, p. 182
Emil Maro Schleicher

Science News, pp. 6-8

Previous Issue: New Series, Vol. 92, No. 2381, Aug. 16, 1940
Next Issue: New Series, Vol. 92, No. 2383, Aug. 30, 1940

Science, New Series, Vol. 92, No. 2383, Aug. 30, 1940

Previous Issue: New Series, Vol. 92, No. 2382, Aug. 23, 1940
Next Issue: New Series, Vol. 92, No. 2384, Sep. 6, 1940

Front Matter (5 pp.)
Trends in Engineering Education, pp. 183-189
Dugald C. Jackson

Obituary

John Eliot Wolff, pp. 189-190
Charles Palache

Scientific Events

The Fish and Wildlife Service, pp. 190-191
Report of the Sub-Committee of the American Institute of Chemists on Licensing of Chemists in New York State, p. 191
The College of Engineering of Cornell University and American Industry, pp. 191-192
The Pan-American Congress of Ophthalmology and Otolaryngology, p. 192

Scientific Notes and News, pp. 193-195

Discussion

A Standard Experimental Vegetation Type, pp. 195-197
R. L. Piemeisel

The Museum as a Potential Force for Social Enlightenment, pp. 197-198
Marcus S. Goldstein

Electrodes Sealed in Glass Tubing, p. 198
Warren C. Vosburgh

Scientific Books

Physics, pp. 198-199
Classical and Modern Physics, a Descriptive Introduction
Harvey E. White

Review author[s]: Leonard B. Loeb

Smashing Atoms, pp. 199-200
Why Smash Atoms?
Arthur K. Solomon

Review author[s]: Leonard B. Loeb

Phytopathogenic Viruses, p. 200
Handbook of Phytopathogenic Viruses
Francis O. Holmes

Review author[s]: C. R. Orton

Plant Microtechnique, pp. 200-201
Plant Microtechnique
Donald A. Johansen

Review author[s]: C. E. Allen

Reports

Cooperative Investigations of the Relation between Mosquito Control and Wildlife Conservation, pp. 201-202
E. L. Bishop

Special Articles

Pantothenic Acid and Nutritional Achromotrichia in Rats, pp. 202-203
Paul György; C. Edward Poling

Crystalline Vitamin A Palmitate and Vitamin A Alcohol, pp. 203-204
J. G. Baxter; C. D. Robeson

The Effect of Salicylate on the Oxygen Uptake of the Tubercle Bacillus, p. 204
Frederick Bernheim

Nornicotine as the Predominating Alkaloid in Certain Tobaccos, pp. 204-205
L. N. Markwood

Scientific Apparatus and Laboratory Methods

Tatoo Punch for Numbering Rats, pp. 205-206
Clyde E. Keeler

A Tested Method of Growing Stentor Coeruleus, p. 206
W. H. Belda; W. J. Bowen

Science News, pp. 6+8+10

Previous Issue: New Series, Vol. 92, No. 2382, Aug. 23, 1940
Next Issue: New Series, Vol. 92, No. 2384, Sep. 6, 1940

Science, New Series, Vol. 92, No. 2384, Sep. 6, 1940

Previous Issue: New Series, Vol. 92, No. 2383, Aug. 30, 1940
Next Issue: New Series, Vol. 92, No. 2385, Sep. 13, 1940

Front Matter (5 pp.)
Radioactivity, pp. 207-210
Joseph (John) Thomson

The Origin of the Earth's Land Formations, pp. 210-212
C. D. Perrine

Scientific Events

The Biological Research Institute of the Zoological Society of San Diego, p. 212
Denis L. Fox

The Great Smoky Mountains National Park, pp. 212-213
The Marine Biological Laboratory at Woods Hole, p. 213
The Detroit Meeting of the Amer-At Woods Hole, pp. 213-214
Recent Deaths, p. 214

Scientific Notes and News, pp. 214-216

Discussion

The First Thousand Mathematical Works Printed in America, pp. 216-217
G. A. Miller

Practical Suggestions for Reducing the Labor of Indexing a Text-Book, pp. 217-218
Leon Hugh Warren

The Incidence of Hydrogen Sulfide at Kilauea Solfatara Preceding the 1940 Mauna Loa Volcanic Activity, pp. 218-219
John H. Payne; Stanley S. Ballard

Scientific Books

A Geological Expedition to the Sunda Islands, p. 219
Geological Expedition of the University of Amsterdam to the Lesser Sunda Islands in the Southeastern Part of the Netherlands East Indies, under the Leadership of H. A. Brouwer

Review author[s]: Reginald A. Daly

The Invertebrates, pp. 219-220
The Invertebrates: Protozoa through Ctenophora
Libbie H. Hyman

Review author[s]: William F. Diller

Reports

Summarized Proceedings of the American Association for the Advancement of Science from 1934 to 1940, pp. 221-222
F. R. Moulton

Special Articles

Morphological and Functional Recovery of the Pancreatic Islands in Diabetic Cats Treated with Insulin, pp. 222-223
F. D. W. Lukens; F. C. Dohan

The Neuro-Motor Mechanism of the Small Blood Vessels of the Frog, pp. 223-224
George P. Fulton; Brenton R. Lutz

Egg-White Injury in Chicks and Its Relationship to a Deficiency of Vitamin H (Biotin), pp. 224-225
Robert E. Eakin; William A. McKinley; Roger J. Williams

Scientific Apparatus and Laboratory Methods

Molecular Weight by Isothermic Distillation, pp. 225-226
Joseph B. Niederl; Arthur M. Levy

A Simple Stain for Tissue Cultures, p. 226
Jane Stanley Craig

Science News, pp. 10+12+14

Previous Issue: New Series, Vol. 92, No. 2383, Aug. 30, 1940
Next Issue: New Series, Vol. 92, No. 2385, Sep. 13, 1940

Science, New Series, Vol. 92, No. 2385, Sep. 13, 1940

Previous Issue: New Series, Vol. 92, No. 2384, Sep. 6, 1940
Next Issue: New Series, Vol. 92, No. 2386, Sep. 20, 1940

Front Matter (4 pp.)
Chemistry within the Atom, pp. 227-231
S. C. Lind

Obituary

Raymond Smith Dugan, p. 231
Henry Norris Russell

Recent Deaths, p. 232

Scientific Events

The Hall of Ethnology of the Museum of New Mexico, p. 232
Government Positions under the Civil Service Commission, pp. 232-233
Work of the New York University College of Engineering, p. 233
The Detroit Zoological Park, p. 233
The Woods Hole Oceanographic Institution, pp. 233-234

Scientific Notes and News, pp. 234-236

Discussion

Apparent Splitting of Light from Fluorescent Lamps by Reflection from Thin Plates, pp. 236-237
C. Wesler Scull

Existence of Only One Variety of Cultivated Mangosteen Explained by Asexually Formed "Seed", pp. 237-238
Claud L. Horn

And/Or or Andor, p. 238
Walter B. Lang

What is Summer?, pp. 238-239
W. W. Sleator

Scientific Books

Sir John Cunningham Mclennan, p. 239
Sir John Cunningham McLennan, a Memoir
H. H. Langton

Review author[s]: Leonard B. Loeb

The Microscope, pp. 239-240
The Microscope
Roy M. Allen

Review author[s]: Donald A. Johansen

Societies and Meetings

The Alabama Academy of Science, pp. 240-241
Septima C. Smith

Special Articles

Time Course of Photosynthesis and Fluorescence, pp. 241-243
E. D. McAlister; Jack Myers

Ethylene Injury to Cut Flowers in Cold Storage Rooms, pp. 243-244
D. Victor Lumsden; R. C. Wright; T. M. Whiteman; J. Wise Byrnes

The Relation of Internal Surface to Intercellular Space in Foliage Leaves, p. 244
Franklin M. Turrell

The Enzymatic Deacetylation of Heroin and Closely Related Morphine Derivatives by Blood Serum, pp. 244-245
C. I. Wright

Scientific Apparatus and Laboratory Methods

A Technique for the Intravenous Inoculation of Chick Embryos, pp. 245-246
Ervin A. Eichhorn

Mounting Embryological Museum Specimens with Glass Wool, p. 246
Ethel W. Venning

Science News, pp. 10+12-13
Back Matter (1 p.)

Previous Issue: New Series, Vol. 92, No. 2384, Sep. 6, 1940
Next Issue: New Series, Vol. 92, No. 2386, Sep. 20, 1940

Science, New Series, Vol. 92, No. 2386, Sep. 20, 1940

Previous Issue: New Series, Vol. 92, No. 2385, Sep. 13, 1940
Next Issue: New Series, Vol. 92, No. 2387, Sep. 27, 1940

Front Matter (3 pp.)
Biological Research after a Century of Dentistry, pp. 247-252
Theodor Rosebury

Scientific Events

The New Telescope of the Oak Ridge Station of the Harvard Astronomical Observatory, p. 252
The Dedication of the Administration Building of Bellevue Hospital, pp. 252-253
The National Defense Program of the American Chemical Society, pp. 253-254
The Bicentennial Celebration of the University of Pennsylvania, p. 254
Recent Deaths and Memorials, p. 254

Scientific Notes and News, pp. 254-257

Discussion

The Name Claiborne in Geologic Literature, pp. 257-258
G. D. Harris

The Museum and Social Enlightenment, pp. 258-259
Waldemar Kaempffert

Sphalerite and Galena in Sedimentary Rocks in Ohio, p. 259
Karl Ver Steeg

A New Source for Agate Artifacts in Central New Mexico, p. 259
Franklin T. McCann

Scientific Books

Horticultural Plants, pp. 259-260
Propagation of Horticultural Plants
Guy W. Adriance; Fred R. Brison

Review author[s]: P. W. Zimmerman

Indian Corn, p. 260
The Origin of Indian Corn and Its Relatives
P. C. Mangelsdorf; R. G. Reeves

Review author[s]: Paul Weatherwax

Reports

A Statement to the Board of Trustees of the Museum of Science and Industry, Chicago, pp. 260-263
Philip Fox

Special Articles

Tick-Borne Human Encephalitis in the European Part of USSR and Siberia, pp. 263-264
M. P. Chumakov; N. A. Seitlenok

Vitamin B1 in Relation to the Growth of Green Plants, pp. 264-266
D. I. Arnon

Some Difficulties Encountered in the Extraction of Growth Hormones from Plant Tissues, pp. 266-267
Felix G. Gustafson

Scientific Apparatus and Laboratory Methods

A Simple Method of Obtaining Pure Cultures of Embryonic Heart Muscle, pp. 267-268
E. Frances Stilwell

Evaluation of Isobutyl Methacrylate Polymer as a Mounting Medium, p. 268
Richard A. Groat

Science News, pp. 10-12

Previous Issue: New Series, Vol. 92, No. 2385, Sep. 13, 1940
Next Issue: New Series, Vol. 92, No. 2387, Sep. 27, 1940

Science, New Series, Vol. 92, No. 2387, Sep. 27, 1940

Previous Issue: New Series, Vol. 92, No. 2386, Sep. 20, 1940
Next Issue: New Series, Vol. 92, No. 2388, Oct. 4, 1940

Front Matter (5 pp.)
Reactions Produced by Neutrons in Heavy Elements, pp. 269-271
Enrico Fermi

Mental Health, pp. 271-276
Adolf Meyer

Obituary

Hans Zinsser, pp. 276-279
Richard P. Strong

Scientific Events

Pollution Investigations of the Fisheries Service, pp. 279-280
The Medicofilm Service of the Army Medical Library, p. 280
The Sealing of the Time Capsule, pp. 280-281
Scientific Lectures of the College of Physicians of Philadelphia, p. 281
The American Ornithological Union, pp. 281-282
The American Mathematical Society, p. 282

Scientific Notes and News, pp. 282-284

Discussion

Rhesus Monkeys (Macaca mulatta) for American Laboratories, pp. 284-286
C. R. Carpenter

Musca Domestica and Hippelates Flies--Vectors of Bovine Mastitis, p. 286
D. A. Sanders

Evidences of Pleistocene Currents in Peninsular Florida, pp. 286-287
Roy E. Dickerson

The Use of the Terms Polygamy, Polygyny and Polyandry, p. 287
David E. Davis

Scientific Books

Statistical Mechanics, pp. 287-288
The Principle of Statistical Mechanics
Richard C. Tolman

Review author[s]: George E. Uhlenbeck

Special Articles

The Autonomic Basis of Emotion, pp. 288-289
E. Gellhorn; R. Cortell; J. Feldman

A Preliminary Note on the Extraction of a Carcinogenic Factor from Primary Human Mammary Cancer, pp. 290-291
John F. Menke

Insect Life without Vitamin A, p. 291
R. E. Bowers; C. M. McCay

Scientific Apparatus and Laboratory Methods

A Differential Metal Bellows Manometer for the Measurement of Blood Flow, pp. 291-292
Hampden Lawson

Science News, pp. 10+12+14

Previous Issue: New Series, Vol. 92, No. 2386, Sep. 20, 1940
Next Issue: New Series, Vol. 92, No. 2388, Oct. 4, 1940

Science, New Series, Vol. 92, No. 2388, Oct. 4, 1940

Previous Issue: New Series, Vol. 92, No. 2387, Sep. 27, 1940
Next Issue: New Series, Vol. 92, No. 2389, Oct. 11, 1940

Front Matter (5 pp.)

The Pacific Division of the American Association for the Advancement of Science

Psychological Approaches to the Biography of Genius, pp. 293-301
Lewis M. Terman

The Time Capsule, pp. 301-303
David S. Youngholm

Scientific Events

The Society for the Promotion of Engineering Education, pp. 303-304
Graduate Work in Chemistry at Columbia University, p. 304
Survey of the Flora of Guatemala, p. 305
Appointments at the Medical School of the University of Minnesota, p. 305
The Mount Desert Island Biological Laboratory, pp. 305-306
Recent Deaths, p. 306

Scientific Notes and News, pp. 306-309

Discussion

The Active Region on the Sun's Surface, pp. 309-310
Fernando Sanford

The Annelid Worm, Polydora, as an Oyster Pest, p. 310
G. Robert Lunz

Alfred B. Nobel Awards in Science, pp. 310-311
Harvey C. Brill

The Witch of Andor, p. 311
E. H. McClelland

Scientific Books

The Geology of China, pp. 311-313
The Geology of China
J. S. Lee

Review author[s]: Frederick K. Morris

Special Articles

Serological Specificity of Heavy Particles Derived from Normal Organs, pp. 313-315
Werner Henle; Leslie A. Chambers

Stabilization of Iodine in Salt and Feedstuffs, pp. 315-316
Frederick F. Johnson; Edward R. Frederick

A New Factor of the Vitamin B Complex Required by the Albino Mouse, pp. 316-317
Earl R. Norris; James Hauschildt

Scientific Apparatus and Laboratory Methods

A Substitute for Edestin, pp. 317-318
Hubert Bradford Vickery; Emil L. Smith; Laurence S. Nolan

Science News, pp. 8+10+12

Previous Issue: New Series, Vol. 92, No. 2387, Sep. 27, 1940
Next Issue: New Series, Vol. 92, No. 2389, Oct. 11, 1940

Science, New Series, Vol. 92, No. 2389, Oct. 11, 1940

Previous Issue: New Series, Vol. 92, No. 2388, Oct. 4, 1940
Next Issue: New Series, Vol. 92, No. 2390, Oct. 18, 1940

Front Matter (4 pp.)
A Modern Conception of the Action of the Nervous System, pp. 319-323
G. H. Parker

Engineering and Religion, pp. 324-326
Dugald C. Jackson

Scientific Events

Scientific and Technical Developments of Use in the War, p. 326
Dedication of the Natural Resources Building at the University of Illinois, pp. 326-327
New Dispensaries in New York City, p. 327
Centennial Celebration of the College of Medicine of New York University, pp. 327-328
The American Society of Mechanical Engineers, p. 328

Scientific Notes and News, pp. 329-331

Discussion

Education and Participation in Science, pp. 331-333
W. Stephen Thomas

Vegetation Type Maps of California and Western Nevada, p. 333
H. A. Jensen

Sex Variation in the Utilization of Iron by Anemic Rats, pp. 333-334
Margaret Cammack Smith; Louise Otis

Suggestions regarding a Proposed Standardization of Osmotic Pressure as a Term, p. 334
W. H. Hall

Scientific Books

Life on Other Worlds, pp. 334-335
Life on Other Worlds
H. Spencer Jones

Review author[s]: Dorrit Hoffleit

Medicine in Aviation, p. 335
Grundriss der Luftfahrtmedizin
Siegfried Ruff; Hubertus Strughold

Review author[s]: E. Asmussen; D. B. Dill

Chemistry in Warfare, pp. 335-336
Chemistry in Warfare
F. A. Hessel; M. S. Hessel; Wellford Martin

Review author[s]: Marston Taylor Bogert

Special Articles

A New Chemical Reaction with the Nitrosyl Radical NOH, pp. 336-337
Oskar Baudisch

The Functions of Diphosphothiamine (Phosphorylated Vitamin B1), pp. 337-338
E. S. Guzman Barron; Carl M. Lyman

Bioelectric Potential as Indicator of Ovulation in the Hen, pp. 338-339
M. Altmann

Scientific Apparatus and Laboratory Methods

Thermostatic Control, pp. 339-340
Charles Butt

Use of Sodium Thioglycollate in Culturing Large Volumes of Anaerobic Bacteria, p. 340
L. S. McClung

Science News, pp. 8+10+11
Back Matter (1 p.)

Previous Issue: New Series, Vol. 92, No. 2388, Oct. 4, 1940
Next Issue: New Series, Vol. 92, No. 2390, Oct. 18, 1940

Science, New Series, Vol. 92, No. 2390, Oct. 18, 1940

Previous Issue: New Series, Vol. 92, No. 2389, Oct. 11, 1940
Next Issue: New Series, Vol. 92, No. 2391, Oct. 25, 1940

Front Matter (4 pp.)
Ira Remsen and American Chemical Research Literature, pp. 341-344
Frederick H. Getman

The Publication of Scientific Research, pp. 345-347
Atherton Seidell

Scientific Events

Reservation by the U. S. Forest Service of a Virgin Hemlock-Beech Forest, pp. 347-348
Exploration on the West African Coast, p. 348
Technochemical Lectures at the Mellon Institute--1940-1941, pp. 348-349
The Promotion of Inter-American Cultural Relations, p. 349
Grants in Aid of Research, p. 349
Recent Deaths, p. 350

Scientific Notes and News, pp. 350-353

Discussion

The Spawning Migration of the Salmon, pp. 353-354
Edwin B. Powers

The Periodic Die-Off in Certain Herbivorous Mammals and Birds, pp. 354-355
F. W. Braestrǔp

Purification of the Pituitary Interstitial Cell Stimulating Hormone, pp. 355-356
Choh Hao Li; Miriam E. Simpson; Herbert M. Evans

The Blackening of Cooked Potatoes, p. 356
Helen Nutting; Marion C. Pfund

Scientific Books

Catastrophism Versus Evolutionism, pp. 356-358
The Material Basis of Evolution
Richard Goldschmidt

Review author[s]: Th. Dobzhansky

Reports

The Massachusetts Institute of Technology and the National Defense Program, pp. 358-359

Special Articles

Properties of the Isolated Equine Encephalomyelitis Virus (Eastern Strain), pp. 359-361
D. Gordon Sharp; A. R. Taylor; Dorothy Beard; H. Finkelstein; J. W. Beard

Hyperfunction of Anterior Pituitary in Rats. II. Estrus Cycles, pp. 361-362
Ben K. Harned; Versa V. Cole

Life History of Spirorchis parvus (Stunkard) Trematoda: Spirorchiidae, pp. 362-363
Limas D. Wall

Scientific Apparatus and Laboratory Methods

An Automatic Zero Pipette for Dispensing Sterile Culture Media, pp. 363-364
Neil E. Rigler; Glenn A. Greathouse

A Dry-Ice Freezing Unit for Cutting Frozen Sections, p. 364
Karl U. Smith

Science News, pp. 8+10-11
Back Matter (1 p.)

Previous Issue: New Series, Vol. 92, No. 2389, Oct. 11, 1940
Next Issue: New Series, Vol. 92, No. 2391, Oct. 25, 1940

Science, New Series, Vol. 92, No. 2391, Oct. 25, 1940

Previous Issue: New Series, Vol. 92, No. 2390, Oct. 18, 1940
Next Issue: New Series, Vol. 92, No. 2392, Nov. 1, 1940

Front Matter (5 pp.)
Engineering Progress and the Social Order, pp. 365-371
Frank B. Jewett; Robert W. King

Obituary

Francis Hobart Herrick, pp. 371-372
Winfred George Leutner

Mary Vaux Walcott, pp. 372-373
H. W. Y.

Scientific Events

Changes in Medical Prescribing in Great Britain, p. 373
Meeting of the Industrial Research Institute, pp. 373-374
"Unlimited Horizons," a Weekly Broadcast, p. 374
Election of Officers of the American Chemical Society, pp. 374-376

Scientific Notes and News, pp. 376-378

Discussion

Some Additional Observations on Slumping and Gully Formation, pp. 378-379
Robert H. Mitchell

Mating and Oviposition in the Pacific Coast Tree Toad, pp. 379-380
Robert Emrie Smith

The Proposed Terms "Exergonic" and "Endergonic" for Thermodynamics, p. 380
Charles D. Coryell

Sat-Chromosomes, pp. 380-381
C. A. Berger

Scientific Books

Inflammation, pp. 381-382
Dynamics of Inflammation: An Inquiry into the Mechanism of Infectious Processes
Valy Menkin

Review author[s]: Eugene L. Opie

Photoelasticity, p. 382
Elasticité et Photoélasticimétrie
H. Le Boiteux; R. Boussard

Review author[s]: J. P. Den Hartog

Special Articles

On the Interdependence of Respiration and Glycolysis, pp. 382-383
Otto Rosenthal; Morris A. Bowie; George Wagoner

Appearance of Skeletal Abnormalities in the Offspring of Rats Reared on a Deficient Diet, pp. 383-384
Josef Warkany; Rose C. Nelson

Modification of the Chemistry and Pharmacological Action of the Cardiac Glycosides, p. 384
Joseph E. F. Riseman; Seymour B. London

The Nature of the Anti-Alopecia Factor, pp. 384-385
D. W. Woolley

Scientific Apparatus and Laboratory Methods

A New Type of Shielded Glass Electrode, pp. 385-386
Jacob Adler

A Direct Method of Determining the Erythrocyte, Leucocyte and Thrombocyte Count of Fowl Blood, p. 386
Psyche W. Wetmore

Science News, pp. 10+12+14

Previous Issue: New Series, Vol. 92, No. 2390, Oct. 18, 1940
Next Issue: New Series, Vol. 92, No. 2392, Nov. 1, 1940

Science, New Series, Vol. 92, No. 2392, Nov. 1, 1940

Previous Issue: New Series, Vol. 92, No. 2391, Oct. 25, 1940
Next Issue: New Series, Vol. 92, No. 2393, Nov. 8, 1940

Front Matter (4 pp.)
Science Five Thousand Years Hence, pp. 387-388
Albert F. Blakeslee

The Value of the Fundamental Sciences in the Establishment of Anesthesiology, pp. 388-392
John S. Lundy

Obituary

Phoebus Aaron Theodor Levene: 1869-1940, pp. 392-395
Lawrence W. Bass

Scientific Events

Engineering Education at the Rensselaer Polytechnic Institute, p. 395
Extension Courses in Aeronautical Engineering of Cornell University, pp. 395-396
Fellowships in the Medical Sciences of the National Research Council, p. 396
The Midwest Wildlife Conference, pp. 396-397
Award of the William H. Nichols Medal of the New York Section of the American Chemical Society, p. 397

Scientific Notes and News, pp. 397-400

Discussion

Multisensual Mathematical Terms, pp. 400-401
G. A. Miller

Holly Defoliation Prevented by a-Naphthaleneacetic Acid, p. 401
J. A. Milbrath; Henry Hartman

Oncoming Reversal of the Human Growth Tide, pp. 401-402
C. A. Mills

Wider Use for Academy of Science Publications through Improved Distribution, p. 403
C. F. Stewart Sharpe

Societies and Meetings

The Tucson Meeting of the Southwestern Division of the American Association for the Advancement of Science, pp. 403-405
Frank E. E. Germann

Special Articles

A New Type of Virus from Epidemic Influenza, pp. 405-408
Thomas Francis

The Vibration of Circular Plates, pp. 408-409
R. C. Colwell; J. K. Stewart; H. D. Arnett

Scientific Apparatus and Laboratory Methods

A Method for Measuring and Recording Continuously the pH of the Circulating Blood, pp. 409-410
C. E. King; Edmund W. Benz

A Simple Inexpensive Device for Accurate Delivery of Small Amounts of Fluid, p. 410
Joseph Vondrak

Science News, pp. 8+10

Previous Issue: New Series, Vol. 92, No. 2391, Oct. 25, 1940
Next Issue: New Series, Vol. 92, No. 2393, Nov. 8, 1940

Science, New Series, Vol. 92, No. 2393, Nov. 8, 1940

Previous Issue: New Series, Vol. 92, No. 2392, Nov. 1, 1940
Next Issue: New Series, Vol. 92, No. 2394, Nov. 15, 1940

Front Matter (4 pp.)

The National Academy of Sciences

Address of Welcome by the President of the University of Pennsylvania, pp. 411-412
Thomas S. Gates

Remarks at the Dinner by the President of the Academy, pp. 412-415
Frank B. Jewett

Abstracts of Papers, pp. 415-419

Obituary

Henry McElderry Knower, pp. 419-421
Ross G. Harrison

Recent Deaths and Memorials, p. 421

Scientific Events

The U. S. Weather Unit at Harvard, p. 422
The Canal Zone Biological Area, p. 422
The Lalor Foundation, p. 422
The Administration of the E. R. Squibb and Sons Award, p. 423
The Permanent Science Fund of the American Academy of Arts and Sciences, pp. 423-424
The Chemical Exposition, p. 424

Scientific Notes and News, pp. 424-427

Discussion

On the Theory of the Separation of Isotopes by Thermal or Centrifugal Methods, pp. 427-428
Arthur Bramley

The Standardization of Osmotic Pressure as a Term, pp. 428-429
S. C. Brooks

Equinoxes and Solstices, p. 429
W. J. Humphreys

Reference Citations and Microfilm, p. 429
Martin D. Young; G. Robert Coatney

Scientific Books

Progress by Cooperation, pp. 430-431
The New Systematics
Julian Huxley

Review author[s]: Frans Verdoorn

Special Articles

A Cancerogenic Tissue Extract from Human Sources, pp. 431-432
Paul E. Steiner

Radioactive Carbon as a Tracer in the Synthesis of Propionic Acid from CO2 by the Propionic Acid Bacteria, pp. 433-434
S. F. Carson; J. W. Foster; S. Ruben; M. D. Kamen

Massive "Acute" Precipitation of Free Sulfathiazole in the Urinary Tract, pp. 434-435
David Lehr; William Antopol; Jacob Churg

Scientific Apparatus and Laboratory Methods

A Modification of Riddle's Method of Prolactin Assay, pp. 435-436
Nao Uyei; Masao Itoh; Seiji Hayatsu; Fukuju Uyeno

Cellophane Cover Slips and a Method for Mounting, p. 436
Irene Bucholtz

Science News, pp. 8+10-11
Back Matter (1 p.)

Previous Issue: New Series, Vol. 92, No. 2392, Nov. 1, 1940
Next Issue: New Series, Vol. 92, No. 2394, Nov. 15, 1940

Science, New Series, Vol. 92, No. 2394, Nov. 15, 1940

Previous Issue: New Series, Vol. 92, No. 2393, Nov. 8, 1940
Next Issue: New Series, Vol. 92, No. 2395, Nov. 22, 1940

Front Matter (3 pp.)
The Mathematical Way of Thinking, pp. 437-446
Hermann Weyl

Scientific Events

Animals and Air Raids, pp. 446-447
Earthquakes of 1940, p. 447
Finances of the Massachusetts Institute of Technology, pp. 447-448
Acquirement by Harvard University of a Deposit of Fossils in Northern Florida, p. 448
Equine Encephalomyelitis and Mosquitoes, p. 448
The Role of Dentists in National Defense, pp. 448-449
Memorials, p. 449

Scientific Notes and News, pp. 449-452

Discussion

Coral-Reefs and the Formation of Petroleum, pp. 452-453
Werner Bergmann; David Lester

The Occurrence and Isolation of Azotobacter in Chinese Soils, pp. 453-454
H. Zanyin Gaw

Production of Symptoms by Subcutaneous Injection of Histamine without Increase of the Blood Histamine, p. 454
Bram Rose

Agassiz and Liebig, p. 454
A. B. Beaumont

The National Academy of Sciences

Abstracts of Papers, pp. 455-458

Reports

A New Pan American Treaty, pp. 458-460
Harold J. Coolidge

Special Articles

Uptake of Radioactive Phosphorus by Nuclei of Liver and Tumors, pp. 460-461
A. Marshak

Mode of Action of Estrogens on the Mammary Gland, pp. 461-462
Harold Speert

The Control of Protoplasmic Streaming, pp. 462-463
Noburô Kamiya

Scientific Apparatus and Laboratory Methods

A Simple Method of Mounting Small Exhibit Specimens of Mammals and Birds, pp. 463-464
Clyde E. Keeler

A Microphotographic Camera, p. 464
Charles Goosmann

Automatic Mercury Valve, p. 464
Hugh B. McGlade

Science News, pp. 8-10

Previous Issue: New Series, Vol. 92, No. 2393, Nov. 8, 1940
Next Issue: New Series, Vol. 92, No. 2395, Nov. 22, 1940

Science, New Series, Vol. 92, No. 2395, Nov. 22, 1940

Previous Issue: New Series, Vol. 92, No. 2394, Nov. 15, 1940
Next Issue: New Series, Vol. 92, No. 2396, Nov. 29, 1940

Front Matter (4 pp.)
The Efficient Parasite, pp. 465-469
N. H. Swellengrebel

The Kinetics of Contact Catalysts and the Industrial Background, pp. 469-471
Hugh Stott Taylor

Scientific Events

The Australian Committee on Animal Production, p. 472
The Dutch Elm Disease in Connecticut, pp. 472-473
Expedition to the Badlands of South Dakota, p. 473
Portraits of Distinguished Chemists, pp. 473-474
Lectures to the Laity of the New York Academy of Medicine, p. 474
Recent Deaths and Memorials, p. 474

Scientific Notes and News, pp. 474-477

Discussion

Perceptual Disorientation during Landing of Airplane, pp. 477-478
A. D. Moore

Frost Rings in Longleaf Pine, p. 478
Earl L. Stone

The Supervision of Publication, pp. 478-479
Richard L. Sutton

The Planning Committee of the Virginia Academy of Science, p. 479
E. C. L. Miller

Scientific Books

The Theory of Probability, pp. 479-480
Theory of Probability
Harold Jeffreys

Review author[s]: Arthur H. Copeland

Eugenics, pp. 480-481
Preface to Eugenics
Frederick Osborn

Review author[s]: Chas. B. Davenport

The National Academy of Sciences

Abstracts of Papers, pp. 481-484

Reports

The National Defense Research Committee, pp. 484-486

Special Articles

The Logistic Curve and the Census Count of 1940, pp. 486-488
Raymond Pearl; Lowell J. Reed; Joseph F. Kish

The Heparins of Various Mammalian Species and Their Relative Anticoagulant Potency, pp. 488-489
L. B. Jaques

Scientific Apparatus and Laboratory Methods

Electro-Foliar Diagnosis, pp. 489-490
C. H. Spurway

A Simple "Live" Trap, p. 490
M. W. Johnson

Science News, pp. 8+10-11
Back Matter (1 p.)

Previous Issue: New Series, Vol. 92, No. 2394, Nov. 15, 1940
Next Issue: New Series, Vol. 92, No. 2396, Nov. 29, 1940

Science, New Series, Vol. 92, No. 2396, Nov. 29, 1940

Previous Issue: New Series, Vol. 92, No. 2395, Nov. 22, 1940
Next Issue: New Series, Vol. 92, No. 2397, Dec. 6, 1940

Front Matter (5 pp.)

The American Association for the Advancement of Science

Preliminary Announcement of the Philadelphia Meeting, pp. 491-499
F. R. Moulton

Obituary

Harry Burr Ferris, pp. 499-500
H. S. Burr

Elvin L. Vernon, pp. 500-501
Worden Waring

Recent Deaths, p. 501

Scientific Events

The Plant, Soil and Nutrition Laboratory Building of the Federal Government at Cornell University, pp. 501-502
Fellowships of the E. I. Du Pont De Nemours and Company, p. 502
The Pan American Congress of Ophthalmology, pp. 502-503
The New York Meeting of the American Society of Mechanical Engineers, p. 503

Scientific Notes and News, pp. 503-506

Discussion

Problems of Aging, pp. 506-507
Edward J. Stieglitz

Shall Zoology Revert to the Time of Linnaeus?, pp. 507-508
Leonard P. Schultz

Paleontological Discovery in Siberia, p. 508
A. Hrdlička

Scientific Books

Flora of Indiana, pp. 508-509
Flora of Indiana
Charles C. Deam

Review author[s]: Henry K. Svenson

Land Mollusca of North America, p. 509
Land Mollusca of North America (North of Mexico)
Henry A. Pilsbry

Review author[s]: Paul Bartsch

The National Academy of Sciences

Abstracts of Papers, pp. 510-512

Special Articles

Attenuation of Cell Stimulating Bacteria by Specific Amino Acids, pp. 512-513
J. M. Van Lanen; I. L. Baldwin; A. J. Riker

Localization of Choline Esterase in Nerve Fibers, pp. 513-514
E. J. Boell; D. Nachmansohn

Feline Pellagra, p. 514
M. K. Heath; J. W. MacQueen; T. D. Spies

Structure-Proteins, pp. 514-515
I. Banga; A. Szent-Györgyi

Scientific Apparatus and Laboratory Methods

Double-Staining in Toto with Hematoxylin and Eosin, pp. 515-516
Chao-Fa Wu

Sterilization of Surgical Instruments by Di-Ethylene Glycol, p. 516
Charles Gurchot; Newton D. Mellars

"Stuck" Syringes, p. 516
W. J. Nungester

Science News, pp. 8+10+12

Previous Issue: New Series, Vol. 92, No. 2395, Nov. 22, 1940
Next Issue: New Series, Vol. 92, No. 2397, Dec. 6, 1940

Science, New Series, Vol. 92, No. 2397, Dec. 6, 1940

Previous Issue: New Series, Vol. 92, No. 2396, Nov. 29, 1940
Next Issue: New Series, Vol. 92, No. 2398, Dec. 13, 1940

Front Matter (5 pp.)
Mineral Nutrients in Relation to Flower Development, pp. 517-520
W. F. Loehwing

Petroleum and National Defense, pp. 520-522
Gustav Egloff

Scientific Events

University College, London, p. 522
Damage to Scientific Institutions in London, pp. 522-523
Emergency Courses to Train Engineers and Technicians, p. 523
The Hospital of the Medical College of Virginia, pp. 523-524
The Meeting of Mathematicians at Baton Rouge, p. 524
Award of the Medals of the American Society of Mechanical Engineers, p. 524

Scientific Notes and News, pp. 525-527

Discussion

Dental Research at the National Bureau of Standards, pp. 527-528
Geo. C. Paffenbarger

Control of Prickly Pear in Australia, pp. 528-529
Francis Ramaley

The Dens and Behavior of the Desert Tortoise, p. 529
A. M. Woodbury; Ross Hardy

Electric Fences that Repel Deer, pp. 529-530
J. G. Burr

J. Peter Lesley and Joseph Lesley, p. 530
Lawrence Whitcomb

Quotations

The British Scientific Advisory Committee, pp. 530-531
The Future of Polish Science, p. 531

Scientific Books

Recent Publications of the British Museum (Natural History), pp. 531-533
Review author[s]: T. D. A. Cockerell

Aquatic Plants, p. 533
A Manual of Aquatic Plants
Norman C. Fassett

Review author[s]: Robert B. Wylie

Reports

The Cotton Root-Rot Tour and Conference of 1940, pp. 533-534
Walter N. Ezekiel

Special Articles

A Quantitative, Absolute Method for the Estimation of Complement (Alexin), pp. 534-535
Michael Heidelberger

The Therapeutic Effectiveness of a Practically Nontoxic New Compound (Calcium Aurothiomalate) in Experimental, Proliferative, Chronic Arthritis of Mice, pp. 535-536
Albert B. Sabin; Joel Warren

Phosphate Acceptors in "Respiratory Phosphorylation" in Muscle Tissue, pp. 536-537
W. A. Belitzer; K. S. Golovskaya

Scientific Apparatus and Laboratory Methods

A Simple Method for Recording Electrocorticograms in Animals without Opening the Skull, pp. 537-538
Hudson Hoagland

An Inexpensive Mouse Cage, p. 538
E. Wilbur Cook

Science News, pp. 10+12+14

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Previous Issue: New Series, Vol. 92, No. 2397, Dec. 6, 1940
Next Issue: New Series, Vol. 92, No. 2399, Dec. 20, 1940

Front Matter (4 pp.)
The Beginnings of Social Behavior in Unicellular Organisms, pp. 539-546
H. S. Jennings

Obituary

Rodney Howard True, pp. 546-547
H. L. Shantz

Howard J. Banker, pp. 547-548
Albert F. Blakeslee

Recent Deaths, p. 548

Scientific Events

Damage to Scientific Institutions in London, p. 548
The Classification of Tool Steels, pp. 548-549
The New Hydraulic Laboratory of the National Research Council of Canada, p. 549
The Proposed New Cancer Hospital in New York City, p. 549
Symposium on Malaria, pp. 549-550
Malcolm H. Soule

The Pacific Division of the American Association for the Advancement of Science, p. 550
The Cold Spring Harbor Biological Laboratory, pp. 550-551
Medalists of the Royal Society, p. 551

Scientific Notes and News, pp. 551-553

Discussion

Collecting Pelagic Foraminifera, pp. 553-554
Fred B. Phleger

On the Specificity of Renin, pp. 554-555
Juan Carlos Fasciolo; Luis F. Leloir; Juan M. Muñoz; Eduardo Braun-Menendez

Exchange Periodicals from Foreign Countries, p. 555
Priscilla B. Montgomery

Antique Galenicals, p. 555
Hobart A. Reimann

Scientific Books

Mathematical Papers of Sir William Rowan Hamilton, pp. 555-556
The Mathematical Papers of Sir William Rowan Hamilton, Vol. 2, Dynamics
A. W. Conway; A. J. McConnell

Review author[s]: F. D. Murnaghan

Recent Developments in the Study of Rocks, pp. 556-557
A Handbook of Rocks for Use without the Petrographic Microscope
James Furman Kemp

Review author[s]: Esper S. Larsen

Societies and Meetings

The Autumn General Meeting of the American Philosophical Society, pp. 557-559
Edwin G. Conklin

Special Articles

Suggestions on Plant Virus Nomenclature as Exemplified by Names for Citrus Viruses, pp. 559-561
Howard S. Fawcett

Solar Rays and Vitamin C, p. 561
Edward F. Kohman; Donald R. Porter

Inefficacy of Pantothenic Acid against the Graying of Fur, pp. 561-562
R. R. Williams

Science News, pp. 8-9+11
Back Matter (1 p.)

Previous Issue: New Series, Vol. 92, No. 2397, Dec. 6, 1940
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Previous Issue: New Series, Vol. 92, No. 2398, Dec. 13, 1940
Next Issue: New Series, Vol. 92, No. 2400, Dec. 27, 1940

Front Matter (3 pp.)
Recent General Trends in Mathematics, pp. 563-566
Aristotle D. Michal

Precious and Semi-Precious Jewels--Their Chemical and Beautifying Qualities, pp. 566-570
R. Norris Shreve

Obituary

Charles William Woodworth, pp. 570-572
E. O. Essig

Recent Deaths, p. 572

Scientific Events

The War and the British Fauna, p. 572
The Herbarium of the New York Botanical Garden, pp. 572-573
Fiftieth Anniversary of the Institute of Experimental Medicine in Leningrad, pp. 573-574
Conference in Honor of Leta S. Hollingworth, p. 574
The Josiah Willard Gibbs Lectures of the American Mathematical Society, pp. 574-575

Scientific Notes and News, pp. 575-577

Discussion

The Sleep of Canaries, pp. 577-578
Gustav Eckstein

Two Factors of Possible Importance in Relation to the Etiology and Treatment of Dental Caries and Other Dental Diseases, pp. 578-579
Robert M. Stephan

Significance of Disseminated Metallic Sulphides in Sedimentary Rocks, p. 579
F. M. Van Tuyl

Vitamin Study at the University of Texas, p. 579
Roger J. Williams

The Quinine Industry, pp. 579-580
Norman Taylor

Scientific Books

Regional Physiography, pp. 580-581
The Physiographic Provinces of North America
Wallace W. Atwood

Review author[s]: Ellis W. Shuler

Plant Physiology, p. 581
Plant Physiology
Bernard S. Meyer; Donald B. Anderson

Review author[s]: John W. Shive

Reports

Philanthropic Foundations, pp. 581-583
Frederick P. Keppel

Special Articles

The Quantum of Sensory Discrimination, pp. 583-585
S. S. Stevens; J. Volkmann

A New Estrogenic Substance Present in the Neutral Fraction of Human Pregnancy Urine, pp. 585-586
Ralph I. Dorfman

Concentration and Partial Purification of Equine Encephalomyelitis Vaccines, pp. 586-587
A. R. Taylor; D. Gordon Sharp; Dorothy Beard; H. Finkelstein; J. W. Beard

Scientific Apparatus and Laboratory Methods

An A-C Powered PH Set, pp. 587-588
Craig W. Goodwin

Science News, pp. 8-10

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Previous Issue: New Series, Vol. 92, No. 2399, Dec. 20, 1940
Next Issue: New Series, Vol. 93, No. 2401, Jan. 3, 1941

Front Matter (5 pp.)
Ideals of Science, pp. 589-592
Albert Francis Blakeslee

The State Scientific Surveys of Illinois, pp. 592-594
W. A. Noyes

The Research Laboratory of the General Electric Company, pp. 594-595
William D. Coolidge

Obituary

Raymond Pearl, pp. 595-597
Lowell J. Reed

Scientific Events

Damage from Bombs to the Royal Botanical Gardens at Kew, pp. 597-598
Engineering Defense Training, p. 598
The Science Caravans of the General Motors Corporation, pp. 598-599
The Fortieth Anniversary of the Research Laboratory of the General Electric Company, p. 599
The National Defense Research Committee, pp. 599-600
Committee on Food and Nutrition of the National Research Council, p. 600

Scientific Notes and News, pp. 600-603

Discussion

Perceptual Disorientation during Landing of Airplane, pp. 603-604
David L. Webster

Spatial Disorientation during Landing from Airplane, p. 604
R. B. MacLeod

The Heat of Serological Reactions, pp. 604-605
William C. Boyd; John B. Conn; Donald C. Gregg; G. B. Kistiakowsky; Richard M. Roberts

Linnaeus on Man's Natural History, p. 605
Aleš Hrdlička

Resignation or Equanimity?, p. 605
W. H. Forbes; D. B. Dill

Scientific Books

Lattice Theory, p. 606
Lattice Theory
Garrett Birkhoff

Review author[s]: Adrian Albert

Foraminifera, pp. 606-607
A Catalogue of Foraminifera
Brooks F. Ellis; Angelina R. Messina

Review author[s]: B. F. Howell

Societies and Meetings

The Texas Academy of Science, p. 607
Frederick A. Burt

Reports

Deferment from Military Service of Scientific Men, pp. 607-608
Frank B. Jewett; Isaiah Bowman

Special Articles

A Further Note on the Identity of Vitamin H with Biotin, p. 609
Paul György; Catharine S. Rose; Klaus Hofmann; Donald B. Melville; Vincent Du Vigneaud

An Irradiated Non-Virulent Antirabies Vaccine, pp. 610-611
Leslie T. Webster; J. Casals

Scientific Apparatus and Laboratory Methods

An Inexpensive Apparatus for Drying from the Frozen State, pp. 611-612
A. R. Taylor; J. W. Beard

Convenient Heat Filter for Tissue Illuminator, p. 612
Herbert A. Phol

An Electronic Relay for Heat Control, p. 612
Albert C. Hall; Lawrence J. Heidt

Science News, pp. 14+16+18

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Science, New Series, Vol. 91, No. 2353, Special Issue Containing Reports of the Third Columbus Meeting of the American Association for the Advancement of Science and Associated Societies, Feb. 2, 1940

Science, New Series, Vol. 91, No. 2354, Feb. 9, 1940

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Science, New Series, Vol. 92, No. 2383, Aug. 30, 1940

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Science, New Series, Vol. 92, No. 2397, Dec. 6, 1940

Science, New Series, Vol. 92, No. 2398, Dec. 13, 1940

Science, New Series, Vol. 92, No. 2399, Dec. 20, 1940

Science, New Series, Vol. 92, No. 2400, Dec. 27, 1940