Science, New Series, Vol. 65, No. 1671, Jan. 7, 1927


Previous Issue: New Series, Vol. 64, No. 1670, Dec. 31, 1926
Next Issue: New Series, Vol. 65, No. 1672, Jan. 14, 1927


Volume Information (8 pp.)
Front Matter (4 pp.)


The American Association for the Advancement of Science
The Chemistry of the Future, pp. 1-4
H. P. Cady


Shoreline Investigations on the Atlantic Coast, pp. 4-7
Douglas Johnson

Frank Hall Knowlton, pp. 7-8
E. W. B.


Scientific Events
Program for the Expansion of the Medical School of the University of Pennsylvania, p. 8
Research in Pure Chemistry at the Mellon Institute, pp. 8-9
The Ambrose Swasey Professorship of Physics, p. 9
Officers of the American Association for the Advancement of Science, pp. 9-10


Scientific Notes and News, pp. 10-13
University and Educational Notes, pp. 13-14


Discussion and Correspondence
Boveri on Cancer, pp. 14-15
Francis C. Wood; Albert Schneider
The Avocado and Vitamins, p. 15
Lloyd B. Dickey
The Velocity of Gravitation, p. 15
Carl T. Chase
"Metabology", p. 15
Morris H. Kahn


Scientific Books
----------------, pp. 15-16
Aeronautical Meteorology
Willis Ray Gregg
Review author[s]: Alexander McAdie


Special Articles
The Effect of Sodium Silicofluoride Sprays on the Peach and on the Control of Bacterial Spot, pp. 16-18
H. W. Anderson
A Comparison of the Viscosity and Liquefaction of Various Gelatins, p. 18
Frederick W. Shaw


The Oklahoma Academy of Science, p. 18
A. Richards

Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 64, No. 1670, Dec. 31, 1926
Next Issue: New Series, Vol. 65, No. 1672, Jan. 14, 1927



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Science, New Series, Vol. 65, No. 1672, Jan. 14, 1927


Previous Issue: New Series, Vol. 65, No. 1671, Jan. 7, 1927
Next Issue: New Series, Vol. 65, No. 1673, Jan. 21, 1927


Front Matter (4 pp.)


The American Association for the Advancement of Science
Diverse Doctrines of Evolution, Their Relation to the Practice of Science and of Life, pp. 19-25
H. S. Jennings
The Nation and Science, pp. 26-29
Herbert Hoover


Arnold Edward Ortmann, p. 29
W. J. Holland


Scientific Events
The Pan-Pacific Science Congress, p. 30
Program of the American Engineering Council, p. 30
The American Museum of Natural History, p. 31
Anti-Evolution Legislation and the American Association of University Professors, p. 31
Dinner in Honor of Sir J. J. Thomson, pp. 31-32


Scientific Notes and News, pp. 32-34
University and Educational Notes, pp. 34-35


Discussion
Early Days of Anti-Vivisection, pp. 35-36
W. W. Keen
Helium in Deep Diving, pp. 36-38
Elihu Thomson
About the Accusation of Plagiarism of the Late Director of the Pulkovo Observatory, Otto Struve, pp. 38-39
A. A. Ivanoff
The Dissolution of Insulin into Two New Active Substances, pp. 39-40
Casimir Funk


Quotations
"Narcosan" and Drug Addiction, p. 40


Scientific Books
----------------, pp. 40-41
Colloid and Capillary Chemistry
Herbert Freundlich
Review author[s]: Harry N. Holmes
----------------, p. 41
Deep Sea Fishing in New Zealand: Tales of the Angler's ElDorado, New Zealand
Zane Grey
Review author[s]: David Starr Jordan


Scientific Apparatus and Laboratory Methods
"A F S," a New Resin of High Refractive Index for Mounting Microscopic Objects, pp. 41-42
G. Dallas Hanna
The Culture Medium for Drosophila, pp. 42-43
Taku Komai


Special Articles
On the Origin of Sun-Spot Vortices, pp. 43-45
Fernando Sanford
Experiments with Bacterial Filters and Filterable Viruses, pp. 45-46
S. P. Kramer


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 65, No. 1671, Jan. 7, 1927
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Science, New Series, Vol. 65, No. 1673, Jan. 21, 1927


Previous Issue: New Series, Vol. 65, No. 1672, Jan. 14, 1927
Next Issue: New Series, Vol. 65, No. 1674, Special Issue Containing Reports of the Fifth Philadelphia Meeting of the American Association for the Advancement of Science and Associated Societies. Edited by Burton E. Livingston, Permanent Secretary, Jan. 28, 1927


Front Matter (4 pp.)


The American Association for the Advancement of Science
Leaf Structure and Wound Response, pp. 47-50
Robert B. Wylie
Factors of Significance in the Development of European Agriculture, pp. 51-53
Jacob G. Lipman


French Instruction and Research in Biology, pp. 53-55
Raoul M. May


Scientific Events
Lectures at the Royal Institution, p. 55
Public Lectures at the Harvard Medical School, p. 55
Gift of the Roebling Mineral Collection to the Smithsonian Institution, pp. 55-56
Revision of the U.S. Pharmacopoeia, p. 56
New Laboratory of Engineering for Lehigh University, pp. 56-57
The Tennessee Anti-Evolution Law, p. 57


Scientific Notes and News, pp. 58-61
University and Educational Notes, pp. 61-62


Discussion and Correspondence
Kinetic Activity, Oriented Adsorption and Molecular Deformation as Factors in Catalysis, pp. 62-63
Jerome Alexander
Mercury and Ammonia Vapor an Explosion Hazard, pp. 63-64
Charles Van Brunt
Observations on Scorpions, p. 64
Frank R. Smith
A Confusion of Terms, pp. 64-65
Roger J. Williams
The Edward Curtis Franklin Fellowship, pp. 65-66
Vernon Kellogg


Scientific Books
----------------, p. 66
A Review of the Giant Mackerel-Like Fishes, Tunnies, Spearfishes and Swordfishes
Barton Warren Evermann
Review author[s]: C. H. Gilbert


Scientific Apparatus and Laboratory Methods
An Improved Closing Bottle for Sub-Surface Sampling of Fluids, pp. 66-67
Winfred Emory Allen


Special Articles
The Width of the Basilar Membrane, pp. 67-69
Stacy R. Guild
Excystation in Iodamoeba Williamst in Vivo and in Vitro, pp. 69-70
Septima C. Smith
The Photographic Study of the Infra-Red Spectrum of Mercury, p. 70
Vladimir P. Lubovich


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 65, No. 1672, Jan. 14, 1927
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©2000-2007 JSTOR

Science, New Series, Vol. 65, No. 1674, Special Issue Containing Reports of the Fifth Philadelphia Meeting of the American Association for the Advancement of Science and Associated Societies. Edited by Burton E. Livingston, Permanent Secretary, Jan. 28, 1927


Previous Issue: New Series, Vol. 65, No. 1673, Jan. 21, 1927
Next Issue: New Series, Vol. 65, No. 1675, Feb. 4, 1927


Front Matter (4 pp.)


The American Association for the Advancement of Science
The Permanent Secretary's Report on the Fifth Philadelphia Meeting, pp. 71-83
General Officers for the Philadelphia Meeting, pp. 83-84
The Council Roll at Philadelphia, pp. 84-87
The Roll of the Executive Committee at Philadelphia, p. 87
Legislative and Executive Proceedings at Philadelphia, pp. 87-89
Report of the Treasurer For 1925-26, pp. 89-90
Financial Report of the Permanent Secretary for the Fiscal Year 1925-26, pp. 90-91
Grants for Research, pp. 91-92
Officers Elected at Philadelphia, p. 92
The President-Elect, pp. 92-94
The Philadelphia Sessions of Sections and Societies, pp. 94-122
The Organization and Work of the American Association, p. 122
Officers of the Association for 1927, pp. 122-124
Future Annual Meetings, p. 124
Special Notes and Notices, p. 124


Science News, pp. xxxiv+xxxvi+xxxviii

Previous Issue: New Series, Vol. 65, No. 1673, Jan. 21, 1927
Next Issue: New Series, Vol. 65, No. 1675, Feb. 4, 1927



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Science, New Series, Vol. 65, No. 1675, Feb. 4, 1927


Previous Issue: New Series, Vol. 65, No. 1674, Special Issue Containing Reports of the Fifth Philadelphia Meeting of the American Association for the Advancement of Science and Associated Societies. Edited by Burton E. Livingston, Permanent Secretary, Jan. 28, 1927
Next Issue: New Series, Vol. 65, No. 1676, Feb. 11, 1927


Front Matter (4 pp.)


The American Association for the Advancement of Science
Research as a Method of Education, pp. 125-128
A. J. Carlson


The Bermuda Biological Station for Research, Inc., pp. 128-130
Herbert W. Rand

A Counterfeit Collection of Mexican Plants Falsely Attributed to Brother G. Arsene, pp. 130-133
Paul C. Standley


Scientific Events
The Harvard African Expedition, p. 133
The New York State Psychiatric Hospital and Institute, pp. 133-134
The Fortieth Anniversary Celebration of Arthur D. Little, Inc., p. 134
Dr. Coolidge and the Edison Medal, pp. 134-135
W. D. Coolidge
Popular Lectures on Science, p. 135


Scientific Notes and News, pp. 135-139
University and Educational Notes, p. 139


Discussion and Correspondence
"The Quantitative Theory of Sex", pp. 139-141
Oscar Riddle; Ales Hrdlicka
Some Notes on the "Elden Pueblo", pp. 141-142
Harold S. Colton
Presbyopic Vision as an Index of Longevity, p. 142
C. J. Elmore
Simplified Spelling, p. 142
A. H. Babcock


Scientific Books
----------------, pp. 142-143
Astronomy
Russell; Dugan; Stewart
Review author[s]: R. T. Crawford
----------------, p. 143
History of the Origin and Establishment of the Inquisition in Portugal
Alexandre Herculano
Review author[s]: David Starr Jordan


Scientific Apparatus and Laboratory Methods
A Micro Method for Estimating the Relative Distribution of Glutathione in Insects, pp. 143-145
David E. Fink


Special Articles
The Oilfish, Ruvettus Pretiosus, at Bermuda, pp. 145-146
E. W. Gudger; L. L. Mowbray


The Northwest Scientific Association, p. 146
Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 65, No. 1674, Special Issue Containing Reports of the Fifth Philadelphia Meeting of the American Association for the Advancement of Science and Associated Societies. Edited by Burton E. Livingston, Permanent Secretary, Jan. 28, 1927
Next Issue: New Series, Vol. 65, No. 1676, Feb. 11, 1927



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Science, New Series, Vol. 65, No. 1676, Feb. 11, 1927


Previous Issue: New Series, Vol. 65, No. 1675, Feb. 4, 1927
Next Issue: New Series, Vol. 65, No. 1677, Feb. 18, 1927


Front Matter (4 pp.)


The American Association for the Advancement of Science
A Mathematical Critique of Some Physical Theories, pp. 147-149
George D. Birkhoff


The China Foundation for the Promotion of Education and Culture, pp. 150-151
E. V. Cowdry

Charles Cleveland Nutting, pp. 151-152
Dayton Stoner


Scientific Events
The Richmond Meeting of the American Chemical Society, pp. 152-153
A Geological Excursion in Texas, p. 153
Award of Prizes by the Sesqui-Centennial Exposition of Philadelphia, p. 153
Scientific Lectures at Pasadena, pp. 153-154
Chas. E. St. John
Dinner in Honor of Dr. Erwin F. Smith, p. 154


Scientific Notes and News, pp. 154-159
University and Educational Notes, p. 159


Quotations
Chile and the Chemists, pp. 159-160


Discussion and Correspondence
Illinium, p. 160
W. A. Noyes
Concerning the Ring Method for Measuring Surface Tension, pp. 160-161
P. Lecomte du Nouy
The Basis of Reflex Coordination, pp. 161-162
Paul Weiss
"Singing" Earthworms, p. 163
Rudolf Ruedemann
English Versus Metric System, pp. 163-164
Ross Aiken Gortner


Scientific Books
----------------, p. 164
Cloud Studies
Arthur W. Clayden
Review author[s]: H. H. Clayton
----------------, pp. 164-165
Die Vögel Mitteleuropas. Herausgegeben von der Staatl. Stelle für Naturdenkmalpflege in Preussen
Oskar Magdalena Heinroth; Frau Magdalena Heinroth
Review author[s]: Harry C. Oberholser


Special Articles
The Fibrillar Structure of the Dental Enamel Matrix of the Guinea Pig, pp. 165-166
T. D. Beckwith; Adrienne Williams
Alfalfa Seed Made Permeable by Heat, p. 166
Anna M. Lute


The American Association for the Advancement of Science
Annual Report of the Secretary-Treasurer of the Pacific Division, p. 166


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 65, No. 1675, Feb. 4, 1927
Next Issue: New Series, Vol. 65, No. 1677, Feb. 18, 1927



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Science, New Series, Vol. 65, No. 1677, Feb. 18, 1927


Previous Issue: New Series, Vol. 65, No. 1676, Feb. 11, 1927
Next Issue: New Series, Vol. 65, No. 1678, Feb. 25, 1927


Front Matter (4 pp.)


The American Association for the Advancement of Science
Infra-Red Spectroscopy, pp. 167-173
H. M. Randall


Scientific Service that the National Forests Might Be Rendering, pp. 173-175
Willard G. Van Name

The Award of the First Charles Reid Barnes Life Membership of the American Society of Plant Physiologists, pp. 175-176
R. P. Hibbard; A. E. Murneek; F. E. Lloyd; G. W. Scarth; C. A. Shull


Scientific Events
Experimental Cytology at the Tenth International Congress of Zoologists at Budapest, pp. 176-177
G. Horváth
Mural Paintings of Prehistoric Animals at the Field Museum, pp. 177-178
Proposed National Research Institute for Chemical Education, p. 178
Public Lectures on Scientific Topics, pp. 178-179
The Jay Backus Woodworth Graduate Scholarship Fund, p. 179
Charles F. Brooks; Richard M. Field; Thorndike Saville; Edward Wigglesworth; T. Wayland Vaughan


Scientific Notes and News, pp. 179-183
University and Educational Notes, p. 183


Discussion and Correspondence
Babylonian Discovery of the Precession of the Equinoxes, p. 184
Florian Cajori
Publication by Photography, pp. 184-185
D. L. Hazard; Lucius P. Brown; J. A. Culler
Exploration of the Etowah Mounds, p. 185
Warren K. Moorehead
Metapsychics, p. 185
T. D. A. Cockerell


Quotations
Thyroxine, pp. 185-186


Scientific Books
----------------, pp. 186-187
Studies of the Variation, Distribution and Evolution of the Genus Partula; the Species Inhabiting Tahiti
Henry Edward Crampton
Review author[s]: David Starr Jordan


Scientific Apparatus and Laboratory Methods
A Simple Laboratory Quartz Mercury Lamp, pp. 187-189
T. Hashimoto; C. C. Wu


Special Articles
Sap Flow and Pressure in Trees, pp. 189-190
D. T. MacDougal; J. B. Overton


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 65, No. 1676, Feb. 11, 1927
Next Issue: New Series, Vol. 65, No. 1678, Feb. 25, 1927



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Science, New Series, Vol. 65, No. 1678, Feb. 25, 1927


Previous Issue: New Series, Vol. 65, No. 1677, Feb. 18, 1927
Next Issue: New Series, Vol. 65, No. 1679, Mar. 4, 1927


Front Matter (4 pp.)
The Smithsonian Institution--Parent of American Science, pp. 191-194
William Howard Taft

Underlying Factors in the Confusion in Zoological Nomenclature with a Definite Practical Suggestion for the Future, pp. 194-199
C. W. Stiles

Leonce Pierre Manouvrier, pp. 199-200
George Grant MacCurdy


Scientific Events
Conference at the Smithsonian Institution, p. 200
A New Outdoor Summer School of Natural History for New York State, p. 201
A Research Professorship in Forest Soils at Cornell University, pp. 201-202
Awards of the Perkin Medal, p. 202


Scientific Notes and News, pp. 202-206
University and Educational Notes, p. 206


Discussion and Correspondence
Bacterial Filters and Filterable Viruses, p. 207
Jerome Alexander
Publication by Photography, pp. 207-208
Gilbert J. Rich; Otto Kney
The French Society for Biogeography, p. 208
Louis Fage
The Journal of General Physiology, pp. 208-209
Matilda Moldenhauer Brooks; W. J. Crozier
The Elden Pueblo, p. 209
J. Walter Fewkes


Scientific Books
----------------, pp. 209-210
Astronomy
John Charles Duncan
Review author[s]: Warren K. Green


Special Articles
On the Absolute Zero of the Controllable Entropy and Internal Energy of a Substance Or Mixture, pp. 210-211
R. D. Kleeman
The Whale-Shark, Rhineodon typus, in the Gulf of California, pp. 211-212
E. W. Gudger


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 65, No. 1677, Feb. 18, 1927
Next Issue: New Series, Vol. 65, No. 1679, Mar. 4, 1927



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Science, New Series, Vol. 65, No. 1679, Mar. 4, 1927


Previous Issue: New Series, Vol. 65, No. 1678, Feb. 25, 1927
Next Issue: New Series, Vol. 65, No. 1680, Mar. 11, 1927


Front Matter (4 pp.)
The Relation of Biology to Physics, pp. 213-220
Thomas H. Morgan

Solar Records in Tree Growth, pp. 220-221
A. E. Douglass

The Significance and Scope of the Idea of Frequency in Physics, pp. 221-223
Wm. S. Franklin


Scientific Events
The New Harvard College Observatory in South Africa, p. 223
A Medical Center for Washington, D. C., p. 223
Lowell Lectures by Professor A. V. Hill, p. 224
Chief of the U.S. Bureau of Chemistry and Soils, pp. 224-225
Memorial Meeting for Dr. Charles D. Walcott, p. 225


Scientific Notes and News, pp. 225-229
University and Educational Notes, p. 229


Discussion and Correspondence
Summer School of Geology and Natural Resources, pp. 229-231
Richard M. Field
The Composition of Geological Publication in the Biennium 1921-1922, pp. 231-232
Chester K. Wentworth; Earl T. Apfel
Concerning the Encystment of Bucephalus Cercariae, p. 232
Arthur E. Woodhead
A Protest, pp. 232-233
H. S. Uhler


Scientific Books
----------------, pp. 233-235
A Manual of Plant Breeding for the Tropics
Nemesio B. Mendiola
Review author[s]: E. B. Copeland
----------------, p. 235
Emile Berliner, the Maker of the Microphone
Frederick William Wile
Review author[s]: F. C. Brown


Special Articles
Note on the Piezo-Electric Effect in Rochelle Salt Crystals, pp. 235-236
Joseph Valasek
The Influence of Epinephrin and of the Sympathetic System on Skeletal Muscle Fibers and Capillaries, p. 236
Frank A. Hartman; Jay I. Evans; Helen G. Walker


The Indiana Academy of Science, p. 236
Harry F. Dietz

Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 65, No. 1678, Feb. 25, 1927
Next Issue: New Series, Vol. 65, No. 1680, Mar. 11, 1927



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Science, New Series, Vol. 65, No. 1680, Mar. 11, 1927


Previous Issue: New Series, Vol. 65, No. 1679, Mar. 4, 1927
Next Issue: New Series, Vol. 65, No. 1681, Mar. 18, 1927


Front Matter (4 pp.)
The Graphic Representation of Relative Variability, pp. 237-241
Raymond Pearl

The Biological Relationships of the Land, the Sea and Man, pp. 241-245
Austin H. Clark

Notes and Reflections on Isostasy, pp. 245-248
George R. Putnam


Scientific Events
Concilium Bibliographicum, p. 248
Vernon Kellogg
The Botany School of the University of Sydney, pp. 248-249
E. C. J.
The Institute of Chemistry of the American Chemical Society, pp. 249-250
The Ella Sachs Plotz Foundation for the Advancement of Scientific Investigation, p. 250


Scientific Notes and News, pp. 250-254
University and Educational Notes, pp. 254-255


Discussion and Correspondence
The Increase in Scientific Periodicals since the Great War, pp. 255-256
Alice C. Atwood
Hooke's Law Again, pp. 256-257
Joseph O. Thompson
Seymour Sewell on "Salps of Indian Seas", p. 257
Maynard M. Metcalf
Storm Damage at Long Beach, N. Y., pp. 257-258
Henry S. Sharp


Scientific Books
A History of Our Times, pp. 258-260
Review author[s]: T. D. A. Cockerell


Scientific Apparatus and Laboratory Methods
A Quick Method of Preserving Cats for Dissection, p. 261
Horace Elmer Wood
A Culture Medium for Free-Living Flagellates, p. 261
James B. Lackey


Special Articles
Concerning Protoplasmic Currents Accompanying Locomotion in Ameba, pp. 261-264
H. W. Rand; S. Hsu
The Increase in the Calcium of Hens' Blood Accompanying Egg Production, p. 264
J. S. Hughes; R. W. Titus; B. L. Smits


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 65, No. 1679, Mar. 4, 1927
Next Issue: New Series, Vol. 65, No. 1681, Mar. 18, 1927



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Science, New Series, Vol. 65, No. 1681, Mar. 18, 1927


Previous Issue: New Series, Vol. 65, No. 1680, Mar. 11, 1927
Next Issue: New Series, Vol. 65, No. 1682, Mar. 25, 1927


Front Matter (4 pp.)
Some Recent Speculations on the Nature of Light, pp. 265-271
Edwin B. Wilson

The Conception of a Species, pp. 271-273
C. C. Hurst

International Critical Tables, p. 273
Vernon Kellogg


Scientific Events
Excursion of the International Soil Science Congress, pp. 273-274
The Scientific Division Committee of the United States Fisheries Association, p. 274
Fellows of the Royal Society of Edinburgh, pp. 274-275
National Research Fellowships in the Biological Sciences, p. 275
Frank R. Lillie


Scientific Notes and News, pp. 275-279
University and Educational Notes, p. 279


Discussion and Correspondence
The Color of Hydrated Silica and Alumina, pp. 279-280
P. G. Nutting
A Criterion for Distinguishing Identical Twins from Fraternal Twins, p. 280
Taku Komai
The "Tearing Method", p. 280
Lecomte du Nouy
Study of Bartlett Pear Black-End Undertaken in California, pp. 280-281
M. J. Heppner


Scientific Books
----------------, pp. 281-282
Man and Weather
Alexander McAdie
Review author[s]: Burton M. Varney
----------------, p. 282
Nomenclator animalium generum et subgenerum
Review author[s]: Walter Landauer


Special Articles
The Influence of Selective and General Irradiation by a Quartz Mercury Arc Lamp upon the Germination and Growth of Seeds, pp. 282-284
Charles Sheard; George M. Higgins
The Effect of Sodium Bicarbonate on the Titration of Iodine with Thiosulfate, p. 284
O. E. Schupp


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 65, No. 1680, Mar. 11, 1927
Next Issue: New Series, Vol. 65, No. 1682, Mar. 25, 1927



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Science, New Series, Vol. 65, No. 1682, Mar. 25, 1927


Previous Issue: New Series, Vol. 65, No. 1681, Mar. 18, 1927
Next Issue: New Series, Vol. 65, No. 1683, Apr. 1, 1927


Front Matter (3 pp.)
The Stimulation of Research in Pure Science Which Has Resulted from the Needs of Engineers and of Industry, pp. 285-289
W. R. Whitney

Physiology at the Naples Station, pp. 289-290
Otto Glaser

The Relation of E. W. Scripps to Science, pp. 291-292
Wm. E. Ritter


Scientific Events
The Anti-Evolution Bills, pp. 292-293
S. J. Holmes
The Stevenson Experimental Arch Dam, p. 293
Sesquicentennial Exposition Awards to the U. S. Department of Agriculture, pp. 293-294
Assets and Expenditures of Harvard University, pp. 294-295
Program of the Annual Meeting of the American Institute of Chemists, p. 295


Scientific Notes and News, pp. 295-299
University and Educational Notes, p. 299


Discussion and Correspondence
Helium, pp. 299-300
Elihu Thomson
Ball Dancing on Water-Jet, p. 300
Edwin H. Hall
International Commission on Zoological Nomenclature, pp. 300-301
C. W. Stiles
Professor Barus and Colloid Chemistry, pp. 301-302
Jerome Alexander
Systemic Effects Following the Sting of a Species of Epyris, pp. 302-303
Chas. E. Von Geldern


Scientific Books
----------------, pp. 303-304
Three Centuries of Chemistry
Irvine Masson
Review author[s]: C. A. Browne
----------------, p. 304
Die Vitamine, Kritische Uebersicht der Lehre von den Ergänzungsstoffen
Ragner Berg
Review author[s]: A. J. Carlson


Special Articles
A Preliminary Report on the Study of the Emission Spectra and Surface Tension Alterations in Experimental Animal Tumors, pp. 304-306
Donald C. A. Butts; Thomas E. Huff; Frederick Palmer
An Attempt to Correlate the Joule Magnetostrictive Effect and Hysteresis Loss in a Series of Nickel Strips, p. 306
S. R. Williams


Science News, pp. x+xii

Previous Issue: New Series, Vol. 65, No. 1681, Mar. 18, 1927
Next Issue: New Series, Vol. 65, No. 1683, Apr. 1, 1927



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Science, New Series, Vol. 65, No. 1683, Apr. 1, 1927


Previous Issue: New Series, Vol. 65, No. 1682, Mar. 25, 1927
Next Issue: New Series, Vol. 65, No. 1684, Apr. 8, 1927


Front Matter (4 pp.)


Research in Colleges and Professional Schools
Introductory Note, pp. 307-308
Maynard M. Metcalf
Research in Medical Schools, pp. 308-311
Florence R. Sabin; D. Wright Wilson
Research in Law, pp. 311-314
Walter Wheeler Cook


Cosmic Aspects of Atmospheric Electricity, pp. 314-316
Louis A. Bauer

Award of Fellowships by the Guggenheim Memorial Foundation, pp. 316-317


Scientific Events
Sir Isaac Newton's Bi-Centenary, p. 318
Frederick E. Brasch
The Centenary of the Birth of Lord Lister, pp. 318-319
Yale-In-China, p. 319
Organization of a Louisiana Academy of Sciences, pp. 319-320
School of Forestry at the University of Michigan, p. 320


Scientific Notes and News, pp. 320-324
University and Educational Notes, p. 324


Discussion and Correspondence
Helium in Deep Diving, pp. 324-325
J. H. Hildebrand
De Kruif's Microbe Hunters, p. 325
Aldo Castellani; George C. Low; David Nabarro; Ronald Ross
Publication by Photography, pp. 325-326
Burton E. Livingston; Sebastian Albrecht
Encyclopedia of the Sciences, pp. 326-327
J. McKeen Cattell


Scientific Books
----------------, p. 327
Pflanzen als Gesteinbildner
Julius Pia
Review author[s]: Edward W. Berry
----------------, pp. 327-328
The Salamanders of the Family Plethodontidae
Emmett Reid Dunn
Review author[s]: Tracy I. Storer


Scientific Apparatus and Laboratory Methods
A Technique for Artificial Feeding of Sandflies (Phlebotomus) and Mosquitoes, pp. 328-329
Arthur T. Hertig; Marshall Hertig


Special Articles
Efficiency of Pinhole Probes, pp. 329-331
Carl Barus
The Nutrition of Planarian Worms, pp. 331-332
Rosalind Wulzen


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 65, No. 1682, Mar. 25, 1927
Next Issue: New Series, Vol. 65, No. 1684, Apr. 8, 1927



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Science, New Series, Vol. 65, No. 1684, Apr. 8, 1927


Previous Issue: New Series, Vol. 65, No. 1683, Apr. 1, 1927
Next Issue: New Series, Vol. 65, No. 1685, Apr. 15, 1927


Front Matter (3 pp.)
Agriculture and Modern Science, pp. 333-338
W. M. Jardine


Research in Colleges and Professional Schools. II
A Report of Suggestions from Three Conferences, pp. 338-342
Maynard M. Metcalf
Research Experiences and Problems in a Small College, pp. 342-345
H. B. Goodrich


William Healey Dall, pp. 345-347
C. Hart Merriam


Scientific Events
Professor Einstein on Newton, pp. 347-348
The Freeman Fund Traveling Scholarship, p. 348
Awards from the Milton Fund at Harvard University, pp. 348-349
Reno Meeting of the Pacific Division of the American Association, pp. 349-350
W. W. Sargeant


Scientific Notes and News, pp. 350-353
University and Educational Notes, p. 353


Discussion and Correspondence
The Fish Neostethus in Siam, pp. 353-355
Hugh M. Smith
Critical Potential Measurements, p. 355
John G. Frayne
"Data is" Or "Data are": Which?, p. 355
A. P. Morse
The Indication of Quotations, p. 355
John W. Arnold


Scientific Books
----------------, pp. 355-356
Coffee
Ralph H. Cheney
Review author[s]: John M. Coulter


Special Articles
Conifers and the Coal Question, pp. 356-357
E. C. Jeffrey


Pacific Science Association, pp. 357-358
Herbert E. Gregory

Science News, pp. x+xii

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Previous Issue: New Series, Vol. 65, No. 1684, Apr. 8, 1927
Next Issue: New Series, Vol. 65, No. 1686, Apr. 22, 1927


Front Matter (4 pp.)
The Significance and Relationships of the Thomas Henry Simpson Memorial Institute for Medical Research, pp. 359-361
Henry A. Christian

The Fortunate Failure of Philosophy, pp. 362-363
W. M. Davis

Edwin Theodore Dumble, pp. 363-364
Charles Laurence Baker


Scientific Events
Benacheion Phytopathological Institute, pp. 364-365
C. P. Sideris
Opening of the Institute of Optics in Paris, p. 365
The Organization of British Scientific Workers, pp. 365-366
Annual Meeting of the American Geophysical Union, pp. 366-367


Scientific Notes and News, pp. 367-371
University and Educational Notes, p. 371


Discussion and Correspondence
Abolition of the Bureau of Chemistry, pp. 371-372
Harvey W. Wiley
10,300,000 Vaccinations for Smallpox without One Single Reported Case of Syphilis, pp. 372-373
M. W. Ireland; E. R. Stitt; H. S. Cumming
Facts and Theories in Geology, pp. 373-374
George McCready Price
Long Range Weather Forecasts, p. 374
Alexander McAdie


Scientific Books
----------------, pp. 374-375
The Insects of Australia and New Zealand
R. J. Tillyard
Review author[s]: T. D. A. Cockerell


Scientific Apparatus and Laboratory Methods
Rapid Determination of Soil Moisture by Alcohol, pp. 375-376
G. J. Bouyoucos


Special Articles
The Askenasy Demonstration of Traction Transmitted through Liquid Water, pp. 376-379
Burton E. Livingston; Grace Lubin
Simple Seismic Measurements, pp. 379-380
Paul Kirkpatrick


Science News, pp. x+xii+xiv

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Science, New Series, Vol. 65, No. 1686, Apr. 22, 1927


Previous Issue: New Series, Vol. 65, No. 1685, Apr. 15, 1927
Next Issue: New Series, Vol. 65, No. 1687, Apr. 29, 1927


Front Matter (4 pp.)
The Limitations of Taxonomy, pp. 381-385
J. M. Aldrich

The Electrical Engineering Research Situation in the American Universities, pp. 385-388
Frederick Emmons Terman

What is a Plant?, pp. 388-390
E. B. Copeland


Scientific Events
The New Oxford School of Pathology, p. 390
Acts of Congress Relating to Scientific Work, p. 391
Meeting of the National Academy of Sciences, pp. 391-392


Scientific Notes and News, pp. 392-396
University and Educational Notes, pp. 396-397


Discussion and Correspondence
The Lunar Eclipses of 1927, pp. 397-398
Willard J. Fisher
Research on Viruses Causing Plant Diseases, p. 398
T. E. Rawlins
Native American Apples, p. 398
N. E. Hansen
Biology at the University of Maine, pp. 399-400
P. W. Whiting


Scientific Books
----------------, p. 400
Textbook of Comparative Physiology
Charles Gardner Rogers
Review author[s]: Francis Ramaley
----------------, pp. 400-401
Ice Ages, Recent and Ancient
A. P. Coleman
Review author[s]: Paul MacClintock


Special Articles
The Nature of the "Inorganic Phosphate" in Voluntary Muscle, pp. 401-403
Cyrus H. Fiske; Y. Subbarow
On the Upper Limit of Vibrational Frequency that Can Be Recognized by Touch, pp. 403-404
Robert H. Gault
Possible Sources of Some Boulders in the Glacial Drift of Missouri, p. 404
Albert S. Wilkerson


Science News, pp. x+xii+xiv

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Previous Issue: New Series, Vol. 65, No. 1686, Apr. 22, 1927
Next Issue: New Series, Vol. 65, No. 1688, May 6, 1927


Front Matter (4 pp.)
Archetypes and Symbolism, pp. 405-412
George L. Streeter

How the Taxonomists May Utilize the International Committee on Nomenclature, pp. 412-415
A. S. Hitchcock

William S. Valiant, p. 415
Albert O. Hayes


Scientific Events
The Establishment of an International Bureau of Meteorology, pp. 415-417
M. Curie; H. A. Lorentz; A. Einstein
A Laboratory for the Study of Rocky Mountain Spotted Fever, p. 417
R. A. Cooley
Annual Meeting of the American Medical Association, pp. 417-418


Scientific Notes and News, pp. 418-422
University and Educational Notes, p. 422


Discussion and Correspondence
Pressure Decomposition as a Source of Solar Energy, pp. 422-423
Donald H. Menzel
"Commensalism" of a Sea Anemone and a Sea Urchin, p. 423
Benjamin Kropp
Preservation of Natural Areas, pp. 423-424
Henry I. Baldwin
When is Mid-Winter?, p. 424
Charles H. Briggs
The Newton Bicentenary, pp. 424-425
R. De Villamil


Scientific Books
----------------, pp. 425-426
American Silurian Crinoids
Frank Springer
Review author[s]: Charles Schuchert


Special Articles
Properties of Substances in the Condensed State at the Absolute Zero of Temperature, pp. 426-427
R. D. Kleeman
Profits Derived from Segregating College Students on the Basis of Ability, pp. 427-429
H. W. Miller
On Valonia and Halicystis in Eastern America, pp. 429-430
L. R. Blinks


Societies and Academies, p. 430
Science News, pp. x+xii+xiv

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Previous Issue: New Series, Vol. 65, No. 1687, Apr. 29, 1927
Next Issue: New Series, Vol. 65, No. 1689, May 13, 1927


Front Matter (4 pp.)
The Source of Solar Energy, pp. 431-438
Donald H. Menzel

Exum Percival Lewis, pp. 438-439
Elmer E. Hall


Scientific Events
The British Mosquito Control Institute, pp. 439-440
Public Lectures at the School of Tropical Medicine of the University of Porto Rico, p. 440
R. A. Lambert
The One Thousandth Meeting of the Entomological Society of Cornell University, p. 440
The American Philosophical Society, pp. 440-441
Elections by the National Academy of Sciences, p. 441


Scientific Notes and News, pp. 441-445
University and Educational Notes, p. 445


Discussion and Correspondence
NaOH Versus Na2Co3, pp. 445-446
P. S. Burgess
Respiration of Insects, p. 446
D. A. MacKay
Fossil Remains in the Loess of Eastern Washington, pp. 446-447
Macy H. Lapham
Defeat of Anti-Evolution in Minnesota, p. 447
Frederick W. Sardeson
More Human Tails, p. 448
W. W. Keen


Scientific Books
----------------, p. 448
The Differential Calorimeter, with Special Reference to the Determination of the Human Basal Metabolism
A. K. Noyons
Review author[s]: Francis G. Benedict


Special Articles
Pressure Phenomena of the Electric Wind, pp. 448-450
Carl Barus
Some Peculiar Auditory Ossicles, pp. 450-451
Clay B. Freudenberger


The National Academy of Sciences, pp. 451-454
Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 65, No. 1687, Apr. 29, 1927
Next Issue: New Series, Vol. 65, No. 1689, May 13, 1927



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Science, New Series, Vol. 65, No. 1689, May 13, 1927


Previous Issue: New Series, Vol. 65, No. 1688, May 6, 1927
Next Issue: New Series, Vol. 65, No. 1690, May 20, 1927


Front Matter (4 pp.)
Charles Doolittle Walcott: Paleontologist--1850-1927, pp. 455-458
Charles Schuchert

New Lights on Evolution, pp. 458-462
Edward C. Jeffrey

Science as Culture, pp. 462-464
Williams Haynes


Scientific Events
The Putnam Baffin Island Expedition, p. 464
The Annual Meeting of Science Service, pp. 464-465
Watson Davis
The Fortieth Anniversary of the Denison Scientific Association, p. 465
W. C. Ebaugh
The Reno Meeting of the Pacific Division of the American Association, p. 466
W. W. Sargeant


Scientific Notes and News, pp. 466-470
University and Educational Notes, pp. 470-471


Discussion and Correspondence
Humidity and Chronometry, p. 471
P. G. Nutting
Sixty-One Names under Consideration for Inclusion in the Official List of Generic Names, pp. 471-472
Ch. W. Stiles
Curiosities of Anthecology, p. 472
Charles Robertson
An Early Book on Algology, pp. 472-473
Arthur P. Kelley


Scientific Books
----------------, p. 473
Manual of Meteorology
Napier Shaw
Review author[s]: Alexander McAdie
----------------, pp. 473-474
An Outline of a Reclassification of the Foraminifera
Joseph A. Cushman
Review author[s]: R. S. Bassler


Special Articles
Notes on the Mechanism of Fermentation, pp. 474-477
F. F. Nord
Proteus Henricensis Nov. Spec., p. 477
Frederick W. Shaw
The Relation of Temperature to Hydrogen-Ion Concentration of Buffer Solutions, pp. 477-478
Aksel G. Olsen


The National Academy of Sciences, pp. 478-480
Science News, pp. x+xii+xiv

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Previous Issue: New Series, Vol. 65, No. 1689, May 13, 1927
Next Issue: New Series, Vol. 65, No. 1691, May 27, 1927


Front Matter (4 pp.)
Recent Discoveries Relating to the Origin and Antiquity of Man, pp. 481-488
Henry Fairfield Osborn

Nomenclatural Efficiency, pp. 489-491
E. P. Felt


Scientific Events
Memorial Services to Charles D. Walcott, pp. 491-492
J. W. Hungate
Activities of the American Museum of Natural History, p. 492
Meeting of Sigma Xi and Dedication of the New Physics Laboratory at Union College, p. 492
P. I. W.
Elections of the American Academy of Arts and Sciences, p. 493
The Medal Meeting of the Franklin Institute, p. 493


Scientific Notes and News, pp. 493-498
University and Educational Notes, p. 498


Discussion and Correspondence
Lability in Ferric Oxide Hydrosols, pp. 498-499
C. H. Sorum
"Finger Prints" of Minerals, p. 499
A. N. Winchell
Correlation of Mexican Bean Beetle Population with Original Forest Type, pp. 499-500
Neale F. Howard
Confusion in Scientific Terminology, pp. 500-501
R. G. Hudson


Scientific Books
----------------, p. 501
The Elements of General Zoology
William J. Dakin
Review author[s]: G. Kingsley Noble


Scientific Apparatus and Laboratory Methods
A New Device for Filing Microscope Slides, pp. 501-502
J. Howard Brown
A Method of Handling Small Objects Previous to Sectioning, pp. 502-503
R. J. Bean


Special Articles
The Chlorides of Ruthenium, p. 503
Jas. Lewis Howe
Studies in Microbial Thermogenesis, pp. 504-506
Lawrence H. James


American Association for the Advancement of Science
The Regular Spring Meeting of the Executive Committee, pp. 506-508
Burton E. Livingston


Science News, pp. x+xii+xiv

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Previous Issue: New Series, Vol. 65, No. 1690, May 20, 1927
Next Issue: New Series, Vol. 65, No. 1692, Jun. 3, 1927


Front Matter (4 pp.)
Higher Endeavor in Science, pp. 509-511
M. I. Pupin

The University and Medical Education, pp. 511-514
Franklin C. McLean

Carl H. Eigenmann, pp. 515-516
Fernandus Payne; David Starr Jordan


Scientific Events
Institute of Pacific Relations, pp. 516-517
Award of Prizes by the American Medical Association for Scientific Exhibits, pp. 517-518
The National Museum of Engineering and Industry, p. 518
Appointment of Fellows in Medicine by the National Research Council, pp. 518-519


Scientific Notes and News, pp. 519-522
University and Educational Notes, pp. 522-523


Discussion and Correspondence
The Arctic Flying of Captain Wilkins and Lieutenant Eielson, pp. 523-525
Richard E. Byrd; Vilhjalmur Stefansson
Effect of High Voltages on Tantalum Anodes, p. 525
Earl M. Dunham
Losses in Speckled Trout Fry after Distribution, pp. 525-526
A. P. Knight
The Need for Definitely Indicating New Synonymy and New Combinations in Taxonomy, p. 526
S. A. Rohwer
Surface Tension Methods, p. 526
J. M. Johlin


Scientific Books
----------------, pp. 526-527
The Fauna of British India, Including Ceylon and Burma. Hirudinea
W. A. Harding; J. Percy Moore
Review author[s]: T. D. A. Cockerell
----------------, p. 527
Vorgeschichtliches Jahrbuch für die Gesellschaft für vorgeschichtliche Forschung
Max Ebert
Review author[s]: George Grant MacCurdy


Special Articles
The Decomposition of Ammonia on Iron Catalysts, pp. 527-528
C. H. Kunsman
A Critical Factor in the Existence of Southwestern Game Birds, pp. 528-529
Joseph Grinnell


Societies and Academies, pp. 529-530
Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 65, No. 1690, May 20, 1927
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Previous Issue: New Series, Vol. 65, No. 1691, May 27, 1927
Next Issue: New Series, Vol. 65, No. 1693, Jun. 10, 1927


Front Matter (4 pp.)
Contributions of Science to the Lighting Art, pp. 531-535
M. Luckiesh

Barro Colorado Island Biological Station, pp. 535-536
Vernon Kellogg

Report of the President of the Ecological Society of America on the Questionnaire of 1926, pp. 536-538
John W. Harshberger


Scientific Events
The Russian Academy of Science, p. 538
Opening of the Uwekahuna Observatory, pp. 538-539
T. A. J.
Award of Commonwealth Fund Fellowships, p. 539
Field Work of the California Academy of Sciences, pp. 539-540


Scientific Notes and News, pp. 540-544
University and Educational Notes, pp. 544-545


Discussion and Correspondence
The Whale Shark, Rhineodon typus, at the Galapagos Islands--A New Faunal Record, p. 545
E. W. Gudger
The Need of Studies of the Mineral Nutrient Contents of Foods and Feeds, p. 546
Paul E. Howe
English Vs. Metric System, pp. 546-547
H. J. Page
The Logarithms of Napier, p. 547
Florian Cajori
An Unauthorized Reprint, p. 547
Karl Pearson


Scientific Books
----------------, pp. 548-549
The Embryology of the Pig
Bradley M. Patten
Review author[s]: Henry McE. Knower


Scientific Apparatus and Laboratory Methods
A Rapid Method for Mechanical Analysis of Soils, pp. 549-551
George J. Bouyoucos


Special Articles
Oceanographic Reconnaissance of the Northern Sector of the Labrador Current, pp. 551-552
Henry B. Bigelow; C. Iselin
Exchangeable Hydrogen and Soil Reaction, pp. 552-553
C. J. Schollenberger
Tumors in Kale, pp. 553-554
P. N. Annand


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 65, No. 1691, May 27, 1927
Next Issue: New Series, Vol. 65, No. 1693, Jun. 10, 1927



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Previous Issue: New Series, Vol. 65, No. 1692, Jun. 3, 1927
Next Issue: New Series, Vol. 65, No. 1694, Jun. 17, 1927


Front Matter (4 pp.)


Presentation of the Medal of the American Institute of Chemists
The Medalist, pp. 555-558
Graham Lusk
Presentation of the Medal, p. 559
Treat B. Johnson
Some Tendencies in the Promotion of Chemical Research, pp. 559-564
Lafayette B. Mendel


William Marc Chauvenet, pp. 564-565
Hermann Von Schrenk


Scientific Events
Jubilee of the Physiological Society, p. 565
An Entomological Survey of the Pacific, pp. 565-566
A. L. Dean
Alaskan Explorations, p. 566
Deduction of Traveling Expenses to Scientific Meeting from Taxable Income, pp. 566-567
Foreign Workers at the U. S. Forest Products Laboratory, p. 567


Scientific Notes and News, pp. 567-571
University and Educational Notes, p. 571


Discussion and Correspondence
Carelessness in Nomenclature, pp. 571-572
Hubert Lyman Clark
Some New Lecture Demonstrations in Gyroscopic Motion, pp. 572-573
Robert C. Colwell
The Precipitin Reaction as a Means of Determining the Congeniality of Grafts, pp. 573-574
E. L. Proebsting; E. H. Barger
In Re "Singing Earthworms", p. 574
W. R. Walton


Scientific Books
----------------, pp. 574-575
Vorlesungen über die Entwicklung der Mathematik im 19. Jahrhundert
Felix Klein
Review author[s]: G. A. Miller


Scientific Apparatus and Laboratory Methods
Synthetic Resin as a Mounting Medium, pp. 575-576
G. Dallas Hanna
A New Use for the Nephelometer and Refractometer, pp. 576-577
Charles F. Hottes; Walter A. Huelsen


Special Articles
Excystation in Vitro of Human Intestinal Protozoa, pp. 577-578
Robert Hegner
Isotopes of Calcium, pp. 578-579
E. K. Plyler
A Pre-Chattanooga Sink Hole, pp. 579-580
Ralph G. Lusk


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 65, No. 1692, Jun. 3, 1927
Next Issue: New Series, Vol. 65, No. 1694, Jun. 17, 1927



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Science, New Series, Vol. 65, No. 1694, Jun. 17, 1927


Previous Issue: New Series, Vol. 65, No. 1693, Jun. 10, 1927
Next Issue: New Series, Vol. 65, No. 1695, Jun. 24, 1927


Front Matter (4 pp.)
What is Statistics?, pp. 581-587
Edwin Bidwell Wilson

What Should We Do with a Harvey Or a Laennec?, pp. 587-588
Eugene F. DuBois

Charles Wesley Hargitt, pp. 588-589
W. M. Smallwood


Scientific Events
An Institute of Physico-Chemical Biology in Paris, p. 589
The Bartol Research Foundation, p. 589
Public Bequests of the Late Payne Whitney, pp. 589-590
Expeditions of the American Museum of Natural History, p. 590
The Institute of Chemistry at the Pennsylvania State College, pp. 590-591
The International Soil Congress, p. 591
Award of the John Scott Medals, pp. 591-592


Scientific Notes and News, pp. 592-594
University and Educational Notes, p. 595


Discussion
Selective Reflection in the Far Ultra-Violet, p. 595
A. H. Pfund
Information concerning Summer Plans of American Men of Science, p. 596
Burton E. Livingston
The Quantitative Theory of Sex, pp. 596-597
R. Goldschmidt
The Origin and Antiquity of Man; a Correction, p. 597
Henry Fairfield Osborn


Scientific Apparatus and Laboratory Methods
A Clear-View Specimen Dish, p. 598
S. I. Kornhauser
A Starch Test in Photosynthesis Experiments, pp. 598-599
Fred W. Emerson


Special Articles
The Role of Kinoplasm in the Genesis of Vacuoles, pp. 599-600
G. W. Scarth; F. E. Lloyd


The Virginia Academy of Science, p. 600
E. C. L. Miller

Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 65, No. 1693, Jun. 10, 1927
Next Issue: New Series, Vol. 65, No. 1695, Jun. 24, 1927



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Science, New Series, Vol. 65, No. 1695, Jun. 24, 1927


Previous Issue: New Series, Vol. 65, No. 1694, Jun. 17, 1927
Next Issue: New Series, Vol. 66, No. 1696, Jul. 1, 1927


Front Matter (4 pp.)
Two Views of the Origin of Man, pp. 601-605
William K. Gregory

Sutherland Simpson, pp. 605-607
John Tait

Summer Schools for Engineering Teachers, pp. 607-609


Scientific Events
The Leeds Meeting of the British Association, pp. 609-610
Ohio Geologists' Field Trip, p. 610
A. C. Swinnerton
The Arnold Arboretum, p. 610
Awards for Research at Cornell University, pp. 610-611


Scientific Notes and News, pp. 611-615
University and Educational Notes, p. 615


Discussion and Correspondence
Element No. 61, p. 615
W. A. Noyes
The Story of the Bear in the First Printing of Darwin's "Origin of Species", p. 616
Henry Fairfield Osborn
A New Find of the Woolly Elephant in Michigan, p. 616
W. H. Sherzer
The Control of Cotton-Wilt by the Use of Organic Fertilizers, pp. 616-617
H. R. Rosen
Editorial Ethics in Scientific Publications, p. 617
F. K. Richtmyer


Scientific Apparatus and Laboratory Methods
A Micro Blood Sugar Method and the Blood Sugars of Insects, pp. 617-619
Reuben Blumenthal


Special Articles
The Study of an Ultraviolet Transmitting Material, p. 619
Walter C. Russell; O. N. Massengale
The Presence of Hemolytic, Cytolytic and Complement-Binding Substances in Extracts of Endamoeba Histolytica, p. 620
Charles F. Craig


The Hawaiian Academy of Science, p. 620
E. H. Bryan

Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 65, No. 1694, Jun. 17, 1927
Next Issue: New Series, Vol. 66, No. 1696, Jul. 1, 1927



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Science, New Series, Vol. 66, No. 1696, Jul. 1, 1927


Previous Issue: New Series, Vol. 65, No. 1695, Jun. 24, 1927
Next Issue: New Series, Vol. 66, No. 1697, Jul. 8, 1927


Volume Information (8 pp.)
Front Matter (6 pp.)
The Lure of Medical History, pp. 1-4
E. B. Krumbhaar

Exit Huebner's Tentamen!, pp. 4-6
W. J. Holland

George Bishop Sudworth, pp. 6-8
Will C. Barnes


Scientific Events
Memorial of the Research Club of the University of Michigan, p. 8
The National Arboretum, pp. 8-9
Mosquito Control, p. 9
Award of the Langley Medal, p. 9
Appointments at the Rockefeller Institute for Medical Research, p. 10


Scientific Notes and News, pp. 10-13
University and Educational Notes, pp. 13-14


Discussion and Correspondence
Concerning "Species-Grinding", pp. 14-15
David Starr Jordan
Biology Versus Mythology in a Criminal Court, p. 15
Percy Viosca
Datum and Data, p. 15
W. W. Keen; Charles H. Blake
Airgraphy Or Aerography?, p. 16
Alexander McAdie
"Astronomic", p. 16
Raymond S. Dugan


Scientific Apparatus and Laboratory Methods
Directions for Determining the Colloidal Material of Soils by the Hydrometer Method, pp. 16-17
George J. Bouyoucos


Special Articles
The Life History of Tapeworms of the Genus Mesocestoides, pp. 17-18
Benjamin Schwartz
Acclimatization of Bufo Tadpoles to Ethyl and Methyl Alcohols, pp. 18-19
Harry Thomas Folger


The American Association for the Advancement of Science
The Second Nashville Meeting of the Association and Associated Societies, pp. 19-20
Burton E. Livingston


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 65, No. 1695, Jun. 24, 1927
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Previous Issue: New Series, Vol. 66, No. 1696, Jul. 1, 1927
Next Issue: New Series, Vol. 66, No. 1698, Jul. 15, 1927


Front Matter (10 pp.)
Presentation of the Kober Medal to Dr. William H. Welch, pp. 21-25
The Productive Capacity of a University, pp. 25-27
Charles H. Herty

Addison Emery Verrill: Pioneer Zoologist, pp. 28-29
Wesley R. Coe


Scientific Events
Airplane Views of Southeastern Alaska, p. 30
Ocean Weather Charts, p. 30
The Astronomy and Physics Club of Pasadena, pp. 30-31
The International Geodetic and Geophysical Union, p. 31
The Bureau of Chemistry and Soils of the U. S. Department of Agriculture, pp. 31-32


Scientific Notes and News, pp. 32-36
University and Educational Notes, p. 36


Discussion
The Chattanoogan Age of the Big Stone Gap Shale of Southwestern Virginia, pp. 36-37
J. H. Swartz
Notes on Heloderma suspectum and Iguana tuberculata, p. 37
Pennoyer F. English
A Protest against Cryptic Titles and Indirect Labeling of Figures, pp. 37-38
C. T. Hurst
Quotations, p. 38
S. Francis Howard
The Metric System, p. 38
W. W. Keen


Quotations
A British Colonial Research, pp. 38-39


Scientific Books
----------------, pp. 39-40
A Bibliography of American Natural History. The Pioneer Century, 1769-1865
Max Meisel
Review author[s]: Charles A. Kofoid


Special Articles
Effect of Short Alternating Periods of Light and Darkness on Plant Growth, pp. 40-42
W. W. Garner; H. A. Allard
Iron Organisms, p. 42
William J. Meehan; L. Baas-Becking


The Iowa Academy of Science, pp. 43-44
P. S. Helmick

Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 66, No. 1696, Jul. 1, 1927
Next Issue: New Series, Vol. 66, No. 1698, Jul. 15, 1927



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Science, New Series, Vol. 66, No. 1698, Jul. 15, 1927


Previous Issue: New Series, Vol. 66, No. 1697, Jul. 8, 1927
Next Issue: New Series, Vol. 66, No. 1699, Jul. 22, 1927


Front Matter (10 pp.)
Public Health Progress and Race Progress--Are They Incompatible?, pp. 45-50
H. S. Jennings

Dr. Franklin P. Mall, pp. 50-52
W. T. Councilman


Scientific Events
Expedition of the American Geographical Society to Central Peru, pp. 52-53
Honorary Degrees Conferred by Yale University, pp. 53-55
Grants for Scientific Research of the American Medical Association, p. 55


Scientific Notes and News, pp. 55-59
University and Educational Notes, pp. 59-60


Discussion
Mean Sea-Level as Affected by Shoreline Changes, pp. 60-61
Douglas Johnson
Quantitative Determination of Rock Color, pp. 61-62
Oliver R. Grawe
A New Fundamentalist Stronghold, p. 62
N. M. Grier


Quotations
Steel Turns to Research, pp. 62-63


Scientific Books
----------------, pp. 63-65
The Ferns (Filicales). Vol. II. The Eusporangiatae and Other Relatively Primitive Ferns
F. O. Bower
Review author[s]: Douglas Houghton Campbell


Special Articles
The Influence of X-Rays on the Development of Drosophila larvae, pp. 65-66
R. G. Hussey; W. R. Thompson; E. T. Calhoun
The Anti-Sterility Vitamin E and Poultry, pp. 66-68
Raymond T. Parkhurst


The American Association of Museums, p. 68
Laurence Vail Coleman

Science News, pp. x+xii+xiv

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Next Issue: New Series, Vol. 66, No. 1699, Jul. 22, 1927



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Science, New Series, Vol. 66, No. 1699, Jul. 22, 1927


Previous Issue: New Series, Vol. 66, No. 1698, Jul. 15, 1927
Next Issue: New Series, Vol. 66, No. 1700, Jul. 29, 1927


Front Matter (10 pp.)
Medical Research and Its Organization, pp. 69-73
Simon Flexner


Scientific Events
The Conversaziones of the Royal Society, pp. 73-74
An International Society for the Study of Peatlands, pp. 74-75
An Agricultural Census of the World, p. 75
The Geologic Survey of Pennsylvania, p. 75
Field Expeditions of the University of Chicago, pp. 75-76
Resolutions in Memory of Victor Lenher, p. 76


Scientific Notes and News, pp. 76-78
University and Educational Notes, p. 78


Discussion
Misuse of the Name "Leucoscope", pp. 78-79
Irwin G. Priest
Tadpoles as a Source of Protozoa for Classroom Use, pp. 79-80
Elery R. Becker
The Effect of Ultraviolet Radiations upon Soy Beans, p. 80
H. Rebecca Dane
Flora of Barro Colorado Island, Canal Zone, p. 80
A. S. Hitchcock
A Daylight Meteor, pp. 80-81
William L. Bryant


Quotations
The National Museum of Australian Zoology, p. 81


Scientific Books
----------------, pp. 81-84
The Internal Constitution of the Stars
A. S. Eddington
Review author[s]: H. H. Plaskett


Artificial Transmutation of the Gene, pp. 84-87
H. J. Muller


Scientific Apparatus and Laboratory Methods
An Instrument for Repeated Determinations of Blood Viscosity in an Animal, pp. 87-89
Russell A. Waud


Special Articles
Balantidia from Pigs and Guinea-Pigs: Their Viability, Cyst Production and Cultivation, pp. 89-91
C. W. Rees
The Decomposition of Hydrogen Peroxide and the Mechanism of Latent Photographic Image Intensification, p. 92
E. P. Wightman; R. F. Quirk


Science News, pp. x+xii+xiv

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Science, New Series, Vol. 66, No. 1700, Jul. 29, 1927


Previous Issue: New Series, Vol. 66, No. 1699, Jul. 22, 1927
Next Issue: New Series, Vol. 66, No. 1701, Aug. 5, 1927


Front Matter (10 pp.)
Bonds of Union between Tropical Medicine and General Medicine, pp. 93-100
Andrew Watson Sellards

Nomina Conservanda, pp. 100-103
J. Chester Bradley


Scientific Events
A Code of Ethics for Scientific Men, pp. 103-104
The World List of Scientific Bibliography, p. 104
A Census of Water-Fowl, pp. 104-105
The Study of Epidemic Encephalitis, p. 105
The Rockefeller Foundation, pp. 105-106


Scientific Notes and News, pp. 106-109
University and Educational Notes, p. 109


Discussion and Correspondence
The Variable Echoes Produced by the Lincoln Memorial, pp. 109-110
C. A. Browne
The Lunell Herbarium, p. 110
J. Arthur Harris
Index Kewensis, p. 111
Arthur W. Hill
The Use of the Generic Name Wilsonia, p. 111
W. C. Toepelman
A Note on the History of Anthropology, p. 111
Robert H. Lowie
Professorships in Medical Schools, p. 111
William Pepper


Quotations
The Society for Experimental Biology and Medicine, p. 112


Muscle, Yeast and Cancer Cells, pp. 112-114
C. D. Snyder


Special Articles
Graphic Treatment of Euler's Equations, pp. 114-115
Carl Barus
The Seat of Formation of Amino Acids in Pyrus Malus L, pp. 115-116
Walter Thomas


Science News, pp. x+xii+xiv

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Next Issue: New Series, Vol. 66, No. 1701, Aug. 5, 1927



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Science, New Series, Vol. 66, No. 1701, Aug. 5, 1927


Previous Issue: New Series, Vol. 66, No. 1700, Jul. 29, 1927
Next Issue: New Series, Vol. 66, No. 1702, Aug. 12, 1927


Front Matter (5 pp.)
Research, pp. 117-122
R. E. Rose

A Liter and a Half of Brains, pp. 122-125
T. Wingate Todd


Scientific Events
British Royal Commission Museums and Galleries, pp. 125-126
Excursion of the Electrochemists, p. 126
The Herman Frasch Foundation for Chemical Research, pp. 126-127
Organization of the Rockefeller Foundation, p. 127


Scientific Notes and News, pp. 127-131
University and Educational Notes, p. 131


Discussion and Correspondence
The Stackability of Tetrakai-Decahedra, pp. 131-132
P. L. K. Gross
Earthworms and Light, p. 132
W. R. Walton
Respiration of Insects, pp. 132-133
Milton O. Lee
Fundamentalism in Pharmacy, p. 133
Henry Leffmann


Quotations
Epidemic Encephalitis in England, pp. 133-134


Scientific Books
----------------, pp. 134-135
Neuzeitliche Bekämpfung tierischer Schädlinge
K. Escherich
Review author[s]: L. O. Howard


Paleontological and Geological Investigations in the John Day Region of Eastern Oregon, pp. 135-136
John P. Buwalda


Scientific Apparatus and Laboratory Methods
The Study of Rhizopus in the General Course of Botany, p. 136
W. J. Himmel


Special Articles
The Variability of Long Diffraction Spacings in Paraffin Waxes, pp. 136-137
George L. Clark
Crops Naturally Infected with Sugar Beet Curly-Top, pp. 137-138
Henry H. P. Severin


Science News, pp. x+xii

Previous Issue: New Series, Vol. 66, No. 1700, Jul. 29, 1927
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Science, New Series, Vol. 66, No. 1702, Aug. 12, 1927


Previous Issue: New Series, Vol. 66, No. 1701, Aug. 5, 1927
Next Issue: New Series, Vol. 66, No. 1703, Aug. 19, 1927


Front Matter (6 pp.)
Physical Indeterminism and Vital Action, pp. 139-144
Ralph S. Lillie

Henry Paul Talbot, pp. 144-145
James F. Norris


Scientific Events
Topographic Maps of Western National Parks, p. 145
Standards for Scientific and Engineering Symbols and Abbreviations, p. 146
Flood Control by Reforestation in Mississippi, pp. 146-147
The Field Museum of Natural History, pp. 147-148


Scientific Notes and News, pp. 148-151
University and Educational Notes, p. 151


Discussion and Correspondence
A New Agricultural Profession, pp. 151-152
Stanley F. Morse
A Probable Origin of Petroleum, p. 152
John Roger


Quotations
The Survival of the Fittest, pp. 152-153


Scientific Books
----------------, pp. 153-154
Catalogue of the Birds of the Americas and the Adjacent Islands in Field Museum of Natural History
Charles E. Hellmayr
Review author[s]: T. D. A. Cockerell


Scientific Apparatus and Laboratory Methods
A Simple Device Useful for Drawing Symmetrical Objects, p. 154
Ralph H. Smith
An Air-Tight Stopper for Bottles Containing Volatile Liquids Or for Large Mariotte Apparatus, pp. 154-155
Frank M. Eaton


The Finding of Pleistocene Material in an Asphalt Pit at Carpinteria, California, pp. 155-157
Ralph Hoffmann; Chester Stock; Loye Miller; Ralph W. Chaney; Herbert L. Mason


Special Articles
The Axial Gradient in Paramecium, pp. 157-158
Walburga Petersen


Science News, pp. x+xii+xiv

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Next Issue: New Series, Vol. 66, No. 1703, Aug. 19, 1927



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Science, New Series, Vol. 66, No. 1703, Aug. 19, 1927


Previous Issue: New Series, Vol. 66, No. 1702, Aug. 12, 1927
Next Issue: New Series, Vol. 66, No. 1704, Aug. 26, 1927


Front Matter (6 pp.)
Josiah Willard Gibbs and the Extension of the Principles of Thermodynamics, pp. 159-163
F. W. Stevens

Arthur Arton Hamerschlag, p. 163
G. P. Grimsley


Scientific Events
Centenaries of 1927, pp. 163-164
The Seismological Work of the U. S. Coast and Geodetic Survey, pp. 164-165
The Aerial Survey Detachment, p. 165
The Chemical Exposition, p. 165


Scientific Notes and News, pp. 165-168
University and Educational Notes, p. 168


Discussion
The Quantitative Theory of Sex, pp. 169-170
Oscar Riddle
Zoological Nomenclature, p. 170
C. W. Stiles
"Opalina elongata" Gourv. is Cepedea saharana Metcalf, p. 170
Maynard M. Metcalf


Quotations
Publicity and Science, pp. 170-171


Scientific Books
----------------, pp. 171-173
Collected Papers of Sir James Dewar
Lady Dewar
Review author[s]: Wilder D. Bancroft


Scientific Apparatus and Laboratory Methods
The Gins Method of Demonstrating Capsules of Bacteria, p. 173
William A. Hagan


Research Notes from the Harvard Observatory, pp. 174-176
Harlow Shapley


Special Articles
Further Studies on the Antirachitic Activation of Substances by Cathode Rays, pp. 176-178
Arthur Knudson
The Development of More Effective Dust Fungicides by Adding Oxidizing Agents to Sulphur, p. 178
H. Atherton Lee; J. P. Martin


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 66, No. 1702, Aug. 12, 1927
Next Issue: New Series, Vol. 66, No. 1704, Aug. 26, 1927



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Science, New Series, Vol. 66, No. 1704, Aug. 26, 1927


Previous Issue: New Series, Vol. 66, No. 1703, Aug. 19, 1927
Next Issue: New Series, Vol. 66, No. 1705, Sep. 2, 1927


Front Matter (8 pp.)


The American Association for the Advancement of Science
Reno Meeting of the Pacific Division, pp. 179-184
W. W. Sargeant


The Emergence of the Biology of Forest and Range, pp. 184-186
Walter P. Taylor


Scientific Events
The Fifth International Botanical Congress, pp. 186-187
The Antarctic Expedition of Commander Richard E. Byrd, p. 187
Wood Collections of the Field Museum, p. 187
The Upper Mississippi Wild Life and Game Refuge, p. 188
Sir William Thiselton-Dyer, p. 188


Scientific Notes and News, pp. 188-191
University and Educational Notes, pp. 191-192


Discussion
A Neglected Note by a Neglected Man, pp. 192-193
J. F. T. Berliner
Organic Fertilizers and Cotton Wilt Control, pp. 193-194
H. R. Fulton
Plasma Calcium, p. 194
W. R. Tweedy; S. B. Chandler
The Ancient American Civilizations and Calendars, pp. 194-195
Zelia Nuttall


Quotations
"Your Money's Worth", pp. 195-196


Scientific Apparatus and Laboratory Methods
Pre-Staining in Botanical Microtechnique. The Alcohol-Xylolsafranin Method, pp. 196-197
Chas. H. Otis


A Study on the Life History of the Broad Fish Tapeworm in North America, pp. 197-198
Henry B. Ward


Special Articles
The Toxicology of Carbon Monoxide, pp. 198-199
David I. Macht
On the Thickness of the Helmholtz Double Layer, p. 200
J. F. McClendon


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 66, No. 1703, Aug. 19, 1927
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Science, New Series, Vol. 66, No. 1705, Sep. 2, 1927


Previous Issue: New Series, Vol. 66, No. 1704, Aug. 26, 1927
Next Issue: New Series, Vol. 66, No. 1706, Sep. 9, 1927


Front Matter (8 pp.)


The British Association for the Advancement of Science
Darwin's Theory of Man's Descent as It Stands To-Day, pp. 201-208
Arthur Keith


Edward Bradford Titchener, pp. 208-209
Howard C. Warren


Scientific Events
Message from the Retiring President of the British Association, pp. 209-210
The Fifth International Genetics Congress, p. 210
The American Chemical Society, pp. 210-211


Scientific Notes and News, pp. 211-214
University and Educational Notes, p. 214


Discussion and Correspondence
The "Washboard" or "Corduroy" Effect Due to Travel of Automobiles over Dirt Roads, pp. 214-216
L. E. Dodd
The Reversible Mixing of Substances in the Condensed State at the Absolute Zero of Temperature, pp. 216-217
R. D. Kleeman
Double Covey of California Valley Quail, p. 217
R. M. Selle


Scientific Books
----------------, pp. 217-218
Man Not a Machine
E. Rignano
Review author[s]: G. H. Parker
----------------, p. 218
Traité de Geographie Physique
Emmanuel De Murtonne
Review author[s]: John W. Harshberger


Scientific Apparatus and Laboratory Methods
Accurately Timed Intermittent Lighting, pp. 218-219
Dean A. Pack
Centrifuging Filterable Viruses, p. 219
M. S. Marshall
Persimmon Seeds for Class Use, pp. 219-220
V. H. Young


Special Articles
The Occurrence of the Platinum Metals, pp. 220-221
Jas. Lewis Howe
The Encystment of Paramoecium in the Recta of Frogs, pp. 221-222
L. R. Cleveland
Natural and Experimental Ingestion of Paramoecium by Cockroaches, p. 222
L. R. Cleveland


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 66, No. 1704, Aug. 26, 1927
Next Issue: New Series, Vol. 66, No. 1706, Sep. 9, 1927



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Science, New Series, Vol. 66, No. 1706, Sep. 9, 1927


Previous Issue: New Series, Vol. 66, No. 1705, Sep. 2, 1927
Next Issue: New Series, Vol. 66, No. 1707, Sep. 16, 1927


Front Matter (6 pp.)


The British Association for the Advancement of Science
The Outstanding Problems of Relativity, pp. 223-229
E. T. Whittaker


Charles Fuller Baker--A Sketch, pp. 229-230
Colin G. Welles


Scientific Events
International Electrical Congresses, pp. 230-231
The Field Museum Paleontological Expedition in South America, pp. 231-232
The Bartol Foundation, p. 232
The New Bureau of Chemistry and Soils, pp. 232-233


Scientific Notes and News, pp. 233-235
University and Educational Notes, pp. 235-236


Discussion and Correspondence
Age of the "Satsop" and the Dalles Formations of Oregon and Washington, p. 236
John P. Buwalda; Bernard N. Moore
More Data, pp. 236-237
E. H. McClelland
Assimilation of Fixed Nitrogen by Havana Tobacco, p. 237
A. B. Beaumont; G. J. Larsinos
Standard Mathematical Symbols, p. 237
Burton E. Livingston


Quotations
A Portrait Painter of Birds, p. 237


Some Limitations of Warburg's Theory of the Role of Iron in Respiration, pp. 238-239
J. William Buchanan


Special Articles
Visible Radiation from Excited Nerve Fiber: The Reddish Blue Arcs and the Reddish Blue Glow of the Retina, pp. 239-241
Christine Ladd-Franklin


The American Association for the Advancement of Science
The Southwestern Division, p. 242
Walter P. Taylor


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 66, No. 1705, Sep. 2, 1927
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Science, New Series, Vol. 66, No. 1707, Sep. 16, 1927


Previous Issue: New Series, Vol. 66, No. 1706, Sep. 9, 1927
Next Issue: New Series, Vol. 66, No. 1708, Sep. 23, 1927


Front Matter (10 pp.)
Ira Remsen, pp. 243-246
William A. Noyes


The American Association for the Advancement of Science
The Reno Meeting of the Pacific Division--II, pp. 246-251
W. W. Sargeant


Scientific Events
The Medical Schools of the United States, pp. 251-252
Survey Lines of the U. S. Coast and Geodetic Survey, p. 252
Explorations in British Columbia, pp. 252-253
The Use of Hudson's Straits for Navigation, p. 253
Lectures on Science, pp. 253-254


Scientific Notes and News, pp. 254-256
Erratum, p. 256
University and Educational Notes, pp. 256-257


Discussion and Correspondence
Philosophy and the Sciences, pp. 257-258
Jared Sparks Moore
The Jacobs Cavern Mastodon Again, pp. 258-259
N. C. Nelson
The Sex Ratio of Adult Trichinae, p. 259
Reed O. Christenson
A New Locality in China for Lyttonia Richthofeni Kayser, p. 259
William Millward
Photometry, pp. 259-260
John W. T. Walsh


Quotations
Research in Medical Practice, p. 260


Scientific Books
----------------, pp. 260-262
Introduction to the History of Science. Volume I, from Homer to Omar Khayyam
George Sarton
Review author[s]: Florian Cajori


Awards for Research at the University of California, pp. 262-265


Special Articles
Long-Bone Length and Body Sizes, p. 265
Frederick S. Hammett
Dietary Requirements for Reproduction, pp. 265-266
Barnett Sure


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 66, No. 1706, Sep. 9, 1927
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Science, New Series, Vol. 66, No. 1708, Sep. 23, 1927


Previous Issue: New Series, Vol. 66, No. 1707, Sep. 16, 1927
Next Issue: New Series, Vol. 66, No. 1709, Sep. 30, 1927


Front Matter (6 pp.)
Lister as Physiologist, pp. 267-272
John Tait

Channels, Valleys and Intermont Detrital Plains, pp. 272-274
W. M. Davis


Scientific Events
The Eleventh Exposition of Chemical Industries, pp. 274-275
The Kansas Geological Field Conference, pp. 275-276
The Committee on Seismology of the British Association, p. 276
The National Arboretum, p. 276
Biology at the California Institute of Technology, pp. 276-277


Scientific Notes and News, pp. 277-279
University and Educational Notes, pp. 279-280


Discussion and Correspondence
An Echo from Morrison Chapel, Transylvania University, p. 280
William A. Anderson
Icarus and Melting Wax, p. 280
Alexander McAdie
Hortus Gramineus Woburnensis, pp. 280-281
A. J. Pieters


Quotations
The World Poultry Congress, p. 281


Scientific Books
----------------, pp. 281-282
Elements of Physical Biology
Alfred J. Lotka
Review author[s]: Edwin B. Wilson


Special Articles
The Anti-Coagulating Action of the Secretion of the Buccal Glands of the Lampreys (Petromyzon, Lampetra and Entosphenus), pp. 282-284
Simon H. Gage; Mary Gage-Day
Equation of Electronic Conduction in Uni-Polar Non-Metallic Films, pp. 284-285
Frank M. Gentry


The American Chemical Society
Meeting of the Council, pp. 285-286
Charles L. Parsons


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 66, No. 1707, Sep. 16, 1927
Next Issue: New Series, Vol. 66, No. 1709, Sep. 30, 1927



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Science, New Series, Vol. 66, No. 1709, Sep. 30, 1927


Previous Issue: New Series, Vol. 66, No. 1708, Sep. 23, 1927
Next Issue: New Series, Vol. 66, No. 1710, Oct. 7, 1927


Front Matter (6 pp.)
Reflections of a Chemist, pp. 287-289
George D. Rosengarten

Does the Net Energy Value of Food Depend upon the Purpose for Which It is Used in the Body?, pp. 289-292
H. H. Mitchell

Ralph Gordon Lusk, pp. 292-293
Kirtley F. Mather

Professor Albrecht Kossel, p. 293
Albert P. Mathews


Scientific Events
The Imperial Agricultural Research Conference, pp. 293-294
The Biochemical Institute for the Middlesex Hospital, London, pp. 294-295
The Journal of Paleontology, p. 295
The Rawson-Macmillan Arctic Expedition of Field Museum, pp. 295-296
Research in Mining and Metallurgy, p. 296


Scientific Notes and News, pp. 297-299
University and Educational Notes, pp. 299-300


Discussion and Correspondence
Arsine from Fused Glass, p. 300
H. M. Elsey
Indications of the Transmission of an Acquired Character in Flax, pp. 301-302
Henry L. Bolley
Mechanism of Buffer Action in Soils, p. 302
Philip B. Myers; Gerald M. Gilligan


Scientific Apparatus and Laboratory Methods
A Method for Obtaining Infective Nematode Larvae from Cultures, pp. 302-303
G. F. White


Special Articles
Transmission of Potato Witches' Broom to Tomatoes and Potatoes, pp. 304-306
P. A. Young
Studies on the Golgi Apparatus of the Mammary Gland, p. 306
H. W. Beams


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 66, No. 1708, Sep. 23, 1927
Next Issue: New Series, Vol. 66, No. 1710, Oct. 7, 1927



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Science, New Series, Vol. 66, No. 1710, Oct. 7, 1927


Previous Issue: New Series, Vol. 66, No. 1709, Sep. 30, 1927
Next Issue: New Series, Vol. 66, No. 1711, Oct. 14, 1927


Front Matter (4 pp.)
Chemistry in Relation to Biology and Medicine with Especial Reference to Insulin and Other Hormones, pp. 307-319
J. J. Abel


American Association for the Advancement of Science
Grants in Aid of Research, for 1928, pp. 319-320
Burton E. Livingston


Albert William Smith, p. 320
H. G.


Scientific Events
Research Fellows of the London Zoological Society, pp. 320-321
The Volta Memorial Fellowship, p. 321
Committee on the Cost of Medical Care, pp. 321-322
Tribute to Professor Henry Fairfield Osborn, p. 322


Scientific Notes and News, pp. 322-326
University and Educational Notes, pp. 326-327


Discussion and Correspondence
The Influence of Adrenal Extracts on the Survival Period of Adrenalectomized Dogs, pp. 327-328
J. M. Rogoff; G. N. Stewart
An Inquiry into the Motion of Droplets of Juice Ejected from an Orange, p. 328
E. O. Hulburt
Use and Disuse in the Chromosomes, pp. 328-329
A. W. Lindsey
Type Cultures, p. 329
L. A. Rogers


The Origin of the Prairie, pp. 329-330
Philip M. Jones


Scientific Apparatus and Laboratory Methods
The Preparation of Copper Hydrosol and Its Use in Electroplating of Glassware, pp. 330-331
Robert D. Barnard


Special Articles
On the Apparent Large Diameters of Molecules for Deactivation by Collision, pp. 331-332
Bernard Lewis
Pollen Sterility in Peaches, p. 332
C. H. Connors


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 66, No. 1709, Sep. 30, 1927
Next Issue: New Series, Vol. 66, No. 1711, Oct. 14, 1927



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Science, New Series, Vol. 66, No. 1711, Oct. 14, 1927


Previous Issue: New Series, Vol. 66, No. 1710, Oct. 7, 1927
Next Issue: New Series, Vol. 66, No. 1712, Oct. 21, 1927


Front Matter (6 pp.)
Jacques Loeb and His Period, pp. 333-337
Simon Flexner

Chemistry in Relation to Biology and Medicine with Especial Reference to Insulin and Other Hormones, pp. 337-346
John J. Abel


Scientific Events
A Study of Ascariasis, p. 346
Howard T. Karsner
Gift of Ward's Natural Science Establishment to the University of Rochester, pp. 346-347
Scientific Lectures at the Franklin Institute, the California Academy of Sciences and the University of Chicago, p. 347
The Dedication of the Chemistry-Psychology Building of Wittenberg College, pp. 348-349


Scientific Notes and News, pp. 349-352
University and Educational Notes, pp. 352-353


Discussion and Correspondence
The Effect of X-Ray on Tryosinase, p. 353
Robert T. Hance
Defining Soil Colloids, pp. 353-354
George John Bouyoucos
Scientors Appear in the Southwest, pp. 354-355
J. H. Kempton
A Daylight Meteor, p. 355
Frederick H. Getman


Quotations
Science for Citizenship, pp. 355-356


The Fall Line of the Eastern United States, pp. 356-357
George T. Renner


Scientific Apparatus and Laboratory Methods
Precipitation of the Virus of Tobacco Mosaic, pp. 357-358
Carl G. Vinson
Brownian Movements with Low Magnification, p. 358
Willoughby Miller Cady


Special Articles
Hysteresis Loss in Nickel of Different Grain-Size, pp. 358-359
S. R. Williams
A Dysentery-Like Bacillus from a Phlegmonous Inflammation, p. 359
Frederick W. Shaw
The Selective Effect of Polarized Radiations on Certain Photochemical Reactions, pp. 359-360
S. S. Bhatnagar


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 66, No. 1710, Oct. 7, 1927
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Science, New Series, Vol. 66, No. 1712, Oct. 21, 1927


Previous Issue: New Series, Vol. 66, No. 1711, Oct. 14, 1927
Next Issue: New Series, Vol. 66, No. 1713, Oct. 28, 1927


Front Matter (8 pp.)
The Gene and the Ontogenetic Process, pp. 361-368
Frank R. Lillie


The American Association for the Advancement of Science
Newspaper Reports on the Meetings, pp. 368-370
Burton E. Livingston


Scientific Events
Research Fellows at Yale University, pp. 370-371
Public Lectures on Astronomy, p. 371
Changes in the Organization of the U. S. Bureau of Standards, pp. 371-372
Division Chairmen of the National Research Council, p. 372


Scientific Notes and News, pp. 372-376
University and Educational Notes, p. 376


Discussion and Correspondence
A Suggestion Or Hypothesis concerning the Zodiacal Light, pp. 376-378
Elihu Thomson
The Physics Quadrilateral, p. 378
Joseph O. Thompson
The Poisoning of Honey Bees by Common Orchard Sprays, p. 378
A. I. Bourne
Acoustics in the Study of "Solutions", pp. 378-379
C. D. Spivak


Quotations
The March to Health, p. 379


Scientific Books
----------------, pp. 379-380
Fogs and Clouds
William J. Humphreys
Review author[s]: B. M. Varney


Special Articles
Thyroxin and Coat Color in Dilute Races of Mice and Rats, pp. 380-381
Harry Beal Torrey
On the Velocity of Sound, pp. 381-382
P. I. Wold; Geo. R. Stibitz
Water Translocation in Young Fruits, p. 382
H. S. Reed; E. T. Bartholomew


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 66, No. 1711, Oct. 14, 1927
Next Issue: New Series, Vol. 66, No. 1713, Oct. 28, 1927



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Science, New Series, Vol. 66, No. 1713, Oct. 28, 1927


Previous Issue: New Series, Vol. 66, No. 1712, Oct. 21, 1927
Next Issue: New Series, Vol. 66, No. 1714, Nov. 4, 1927


Front Matter (5 pp.)
Erwin F. Smith, pp. 383-385
E. W. Brandes

College Libraries and Chemical Education, pp. 385-389
P. L. K. Gross; E. M. Gross


Scientific Events
Zoology at the Nashville Meeting of the American Association, p. 389
Geo. T. Hargitt
The International Office of Chemistry at Paris, p. 389
Lectures at the Field Museum of Natural History, p. 390
Dedication of the New Medical Laboratories at the University of Chicago, pp. 390-391
The Bureau of Entomology and Dr. L. O. Howard, p. 391


Scientific Notes and News, pp. 391-395
University and Educational Notes, pp. 395-396


Discussion and Correspondence
Exit the Tentamen, but..., pp. 396-397
Wm. T. M. Forbes
Parasitic Copepods, pp. 397-398
Chas. B. Wilson
New Dust Treatments for Oats Smuts, p. 398
J. D. Sayre; R. C. Thomas
Do Cats Sharpen Their Claws?, pp. 398-399
Ole N. De Weerdt
Recent Publications of the National Research Council, p. 399
Vernon Kellogg


Scientific Apparatus and Laboratory Methods
Preparations of Stained Decalcified Bone Which Rival Ground Sections, pp. 399-400
Alden B. Dawson
Some Fixatives for Both Nuclei and Mitochondria, pp. 400-401
Conway Zirkle


Special Articles
The MnII Spectrum Excited by Rare Gas Ions, pp. 401-402
J. G. Black; O. S. Duffendack
Fog Precipitated by Trees, pp. 402-403
Thos. H. Means
Action Currents from Muscular Contractions during Conscious Processes, p. 403
Edmund Jacobson


The National Academy of Sciences, pp. 403-406
Science News, pp. x+xii+xiv+xvi

Previous Issue: New Series, Vol. 66, No. 1712, Oct. 21, 1927
Next Issue: New Series, Vol. 66, No. 1714, Nov. 4, 1927



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Science, New Series, Vol. 66, No. 1714, Nov. 4, 1927


Previous Issue: New Series, Vol. 66, No. 1713, Oct. 28, 1927
Next Issue: New Series, Vol. 66, No. 1715, Nov. 11, 1927


Front Matter (6 pp.)
What Can the Modern Chemist Learn from the Old Alchemy?, pp. 407-417
Paul Walden

Sarah Frances Whiting, pp. 417-418
Annie J. Cannon


Scientific Events
The New England Intercollegiate Geological Excursion, p. 419
W. G. Foye
Lectures at the New York Academy of Medicine, p. 419
Award of John Fritz Medal for 1928, pp. 419-420
Fred R. Low
The New York Hospital-Cornell Medical College Association, pp. 420-421


Scientific Notes and News, pp. 421-424
University and Educational Notes, pp. 424-425


Discussion and Correspondence
Old Problems with New Illustrations, pp. 425-426
R. G. Aitken
On Manson's Eye Worm in Poultry, pp. 426-427
A. L. Shealy
Re Nomina Conservanda, p. 427
W. L. McAtee
Earthworms and Spectral Colors, p. 427
G. H. Bretnall


Scientific Apparatus and Laboratory Methods
A Simple Automatic Dehydrating Apparatus for Many Small Objects, pp. 427-429
Ezra Allen


Special Articles
Survival of Ability, pp. 429-430
Frederick Adams Woods
Quantitative Hydrolysis of Starch by Buffered Taka-Diastase, pp. 430-431
I. D. Collins


The National Academy of Sciences, pp. 431-434
Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 66, No. 1713, Oct. 28, 1927
Next Issue: New Series, Vol. 66, No. 1715, Nov. 11, 1927



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Science, New Series, Vol. 66, No. 1715, Nov. 11, 1927


Previous Issue: New Series, Vol. 66, No. 1714, Nov. 4, 1927
Next Issue: New Series, Vol. 66, No. 1716, Nov. 18, 1927


Front Matter (6 pp.)
Specialization and Cooperation in Scientific Research, pp. 435-442
Karl T. Compton

Some Problems in Botanical Classification, pp. 442-444
G. P. Van Eseltine


Scientific Events
The International Congress of Entomology, pp. 444-445
The Walter Rathbone Bacon Scholarship, p. 445
The Linthicum Foundation Prize, p. 445
The Engineering Index Service, pp. 445-446
The Commission for Relief in Belgium Fellowships, p. 446


Scientific Notes and News, pp. 446-450
University and Educational Notes, pp. 450-451


Discussion and Correspondence
The Tilden Meteor, an Illinois Daylight Fall, p. 451
Charles Clayton Wylie
Etiology of European Foul-Brood of Bees, pp. 451-452
Denis R. A. Wharton
Note on a Second Occurrence of the Mosasaurian Reptile, Globidens, p. 452
Charles W. Gilmore
More and Better Ethics for Scientific Men, pp. 452-453
Robert C. Miller


Scientific Books
----------------, pp. 453-456
Les Physiciens Hollandais et la Methode Experimental en France au XVIIIème Siécle
Pierre Brunet
An Introduction to the Study of Experimental Medicine
Claude Bernard
Review author[s]: Jonathan Wright


Special Articles
Long-Lived Cells of the Redwood, pp. 456-457
D. T. MacDougal; Gilbert M. Smith
Glucose as an Antagonist, pp. 457-458
Alex. D. Baker; W. A. DeLong
Geochronology as Based on Solar Radiation, pp. 458-460
Gerard De Geer


The National Academy of Sciences, pp. 460-462
Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 66, No. 1714, Nov. 4, 1927
Next Issue: New Series, Vol. 66, No. 1716, Nov. 18, 1927



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Science, New Series, Vol. 66, No. 1716, Nov. 18, 1927


Previous Issue: New Series, Vol. 66, No. 1715, Nov. 11, 1927
Next Issue: New Series, Vol. 66, No. 1717, Nov. 25, 1927


Front Matter (8 pp.)
Objective and Human Physics, pp. 463-469
Arthur Haas

Louis Agassiz Fuertes, pp. 469-472
Wilfred H. Osgood


Scientific Events
Gifts to Columbia University, p. 472
Research in Mining and Metallurgy at the Carnegie Institute of Technology, pp. 472-473
Fossils of Baffin Land, pp. 473-474
Geology at the Nashville Meeting of the American Association, p. 474
G. R. Mansfield


Scientific Notes and News, pp. 474-478
University and Educational Notes, pp. 478-479


Discussion and Correspondence
A Communication on the Magneto-Optical Effect and a Correction, pp. 479-480
Elihu Thomson
The European Larch Canker in America, pp. 480-481
Perley Spaulding; Paul V. Siggers
The Deficiency of English Units of Measure and Weight for Scientific and Technical Uses, p. 481
Samuel Russell
"Washboard" or "Corduroy" Effect Due to the Travel of Automobiles over Dirt Roads, pp. 481-482
Christian A. Ruckmick


The Search for Elements Essential in Only Small Amounts for Plant Growth, pp. 482-484
A. L. Sommer


Scientific Apparatus and Laboratory Methods
A Container for Field Collection of Mosquito Larvae, p. 484
Wm. A. Hoffman
Decalcification of Bone in Acid Free Solutions, pp. 484-485
B. Kramer; P. G. Shipley


Special Articles
E.M.F. Induced in a Straight Wire by a Current in a Parallel Straight Conductor, pp. 485-486
Vladimir Karapetoff
Rate of Virus Spread in Tomato Plants, pp. 486-487
W. A. McCubbin; F. F. Smith
Feeding Plants Manganese through the Stomata, pp. 487-489
Forman T. McLean


Southwestern Archeological Conference, pp. 489-491
A. V. Kidder


The American Association for the Advancement of Science
Financial Grants to Advance Research, pp. 491-492
Burton E. Livingston


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 66, No. 1715, Nov. 11, 1927
Next Issue: New Series, Vol. 66, No. 1717, Nov. 25, 1927



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Science, New Series, Vol. 66, No. 1717, Nov. 25, 1927


Previous Issue: New Series, Vol. 66, No. 1716, Nov. 18, 1927
Next Issue: New Series, Vol. 66, No. 1718, Special Issue Containing the Preliminary Announcement of the Second Nashville Meeting of the American Association for the Advancement of Science and Associated Societies, December 26-31, 1927. Edited by Burton E. Livingston, Permanent Secretary, Dec. 2, 1927


Front Matter (4 pp.)
Relations of the American Association to the National Academy, pp. 493-495
Burton E. Livingston

The Activity of Nerve, pp. 495-499
R. W. Gerard

Hawaii's Tribute to Dr. Newcombe, pp. 499-500
Elizabeth Dorothy Wuist Brown


Scientific Events
The Australian National Research Council, p. 500
Lectures by Industrial Fellows at the Mellon Institute, pp. 500-501
Standards for Scientific and Engineering Symbols and Abbreviations, pp. 501-502
Meeting of the American Museum of Natural History, p. 502


Scientific Notes and News, pp. 502-506
University and Educational Notes, p. 506


Discussion and Correspondence
Confusing Names for a Meteor, pp. 506-507
C. C. Wylie
Fireballs and New England Scientists, pp. 507-508
Willard J. Fisher
On the Loss of the Fifth Toe in Certain Salamanders, p. 509
E. R. Dunn
Cod-Liver Oil for "Snuffles" in Rabbits and Pneumonia in Guinea-Pigs, pp. 509-510
Heman L. Ibsen
The Scientific Papers of Willard Gibbs, p. 510
Victor Cofman


American Association for the Advancement of Science
A Special Feature of the Second Nashville Meeting: Science for the People, pp. 510-511
Austin H. Clark
The Thousand-Dollar Prize to Be Awarded at Nashville, pp. 511-512
Burton E. Livingston


Scientific Apparatus and Laboratory Methods
An Agar Medium for Plating L. acidophilus and L. bulgaricus, pp. 512-513
Walter L. Kulp


Special Articles
The Origin and Distribution of Scientific Men, pp. 513-516
J. McKeen Cattell


Science News, pp. x+xii+xiv
Back Matter (2 pp.)

Previous Issue: New Series, Vol. 66, No. 1716, Nov. 18, 1927
Next Issue: New Series, Vol. 66, No. 1718, Special Issue Containing the Preliminary Announcement of the Second Nashville Meeting of the American Association for the Advancement of Science and Associated Societies, December 26-31, 1927. Edited by Burton E. Livingston, Permanent Secretary, Dec. 2, 1927



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Science, New Series, Vol. 66, No. 1718, Special Issue Containing the Preliminary Announcement of the Second Nashville Meeting of the American Association for the Advancement of Science and Associated Societies, December 26-31, 1927. Edited by Burton E. Livingston, Permanent Secretary, Dec. 2, 1927


Previous Issue: New Series, Vol. 66, No. 1717, Nov. 25, 1927
Next Issue: New Series, Vol. 66, No. 1719, Dec. 9, 1927


Front Matter (6 pp.)


The American Association for the Advancement of Science
Preliminary Announcement of the Second Nashville Meeting of the American Association for the Advancement of Science and Associated Societies, pp. 517-534


Scientific Events
The New Biology Buildings at the University of Birmingham, pp. 534-535
Darwin's Home for the Nation, p. 535
Building Activities of the Chicago Zoological Society, pp. 535-536


Scientific Notes and News, pp. 536-540
University and Educational Notes, p. 540


Discussion and Correspondence
Tumors in the Lower Carboniferous, p. 540
Roy L. Moodie
Mastodon Remains in Washington, pp. 540-541
Harold E. Culver
Available Material in Comparative Anatomy and Pathology, p. 541
Herbert Fox
Report of the Ransom Memorial Committee, pp. 541-542
Eloise B. Cram


Scientific Apparatus and Laboratory Methods
A Simple Device for Washing Culture Tubes, p. 542
I. M. Lewis


Special Articles
Notes on a Species Cross in Mice and on an Hypothesis concerning the Quantitative Potentiality of Genes, pp. 542-543
C. C. Little
The Absorption Spectrum of Mercury at High Pressure Admixed with Nitrogen, pp. 543-544
Howard R. Moore


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 66, No. 1717, Nov. 25, 1927
Next Issue: New Series, Vol. 66, No. 1719, Dec. 9, 1927



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Science, New Series, Vol. 66, No. 1719, Dec. 9, 1927


Previous Issue: New Series, Vol. 66, No. 1718, Special Issue Containing the Preliminary Announcement of the Second Nashville Meeting of the American Association for the Advancement of Science and Associated Societies, December 26-31, 1927. Edited by Burton E. Livingston, Permanent Secretary, Dec. 2, 1927
Next Issue: New Series, Vol. 66, No. 1720, Dec. 16, 1927


Front Matter (3 pp.)
Hospital and Laboratory, pp. 545-552
Rufus Cole

The Biology of Lake Baikal, pp. 552-554
T. D. A. Cockerell


Scientific Events
Memorial of Professor Bruce Fink, p. 554
B. M. Davis; S. R. Williams; C. H. Handschin; F. L. Clark; W. H. Shideler
The Third Race Betterment Conference, pp. 554-555
Opening of the Nichols Chemistry Building at New York University, pp. 555-556


Scientific Notes and News, pp. 556-560
University and Educational Notes, p. 560


Discussion and Correspondence
On Active Glucose, pp. 560-561
P. A. Levene
The Stephen Hales Prize Fund of the American Society of Plant Physiologists, pp. 561-562
Charles A. Shull; Burton E. Livingston
Losses in Trout Fry after Distribution, pp. 562-563
A. P. Knight
The Use of the Term Allotype, p. 563
J. C. Bradley
Consider the User of Bulletins, pp. 563-564
R. J. Barnett


Scientific Books
----------------, pp. 564-565
Catalogue of Cainozoic Plants in the Department of Geology, Vol. I. The Bembridge Flora
Eleanor Mary Reid; Marjorie Elizabeth Jane Chandler
Review author[s]: Edward W. Berry


Special Articles
Blueberry Chromosomes, pp. 565-566
Frederick V. Coville
Chromosomes in Vaccinium, pp. 566-568
A. E. Longley
The Stretching of Copper Wire, pp. 568-569
Will C. Baker


The American Association for the Advancement of Science
The Regular Fall Meeting of the Executive Committee, pp. 569-570
Burton E. Livingston


Science News, pp. x+xii
Back Matter (2 pp.)

Previous Issue: New Series, Vol. 66, No. 1718, Special Issue Containing the Preliminary Announcement of the Second Nashville Meeting of the American Association for the Advancement of Science and Associated Societies, December 26-31, 1927. Edited by Burton E. Livingston, Permanent Secretary, Dec. 2, 1927
Next Issue: New Series, Vol. 66, No. 1720, Dec. 16, 1927



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Science, New Series, Vol. 66, No. 1720, Dec. 16, 1927


Previous Issue: New Series, Vol. 66, No. 1719, Dec. 9, 1927
Next Issue: New Series, Vol. 66, No. 1721, Dec. 23, 1927


Front Matter (10 pp.)
The State Academies of Science Affiliated with the American Association, pp. 571-579
Wilhelm Segerblom

Hesperopithecus Apparently Not an Ape Nor a Man, pp. 579-581
William K. Gregory

A New Theory of Polygenic (Or Non-Monogenic) Functions, pp. 581-582
Edward Kasner


Scientific Events
Report of the President of the Carnegie Institution, pp. 582-583
Explorations in Alaska by the U. S. Geological Survey, pp. 583-584
Endowment for the Arnold Arboretum, p. 584
The First Meeting of the Colorado-Wyoming Academy of Science, p. 584


Scientific Notes and News, pp. 584-589
University and Educational Notes, p. 589


Discussion and Correspondence
The Physicist and the Facts of Color, pp. 589-591
Christine Ladd-Franklin
Additional Records of the Occurrence of the Fresh-Water Jelly-Fish, pp. 591-593
Waldo L. Schmitt
The Magneto-Optical Effect and the Zodiacal Light, p. 593
C. C. Wylie
The Indigenous Native Population of Algeria in 1926, pp. 593-594
Raymond Pearl


Scientific Books
----------------, pp. 594-596
Recent Advances in Haematology
A. Piney
Review author[s]: H. E. Jordan


Does the Amount of Food Consumed Influence the Growth of an Animal?, pp. 596-600
H. H. Mitchell


Special Articles
Ovarian Secretion and Tumor Incidence, pp. 600-601
William S. Murray
The Chromosomes of the Rat, pp. 601-602
Olive Swezy


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 66, No. 1719, Dec. 9, 1927
Next Issue: New Series, Vol. 66, No. 1721, Dec. 23, 1927



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Science, New Series, Vol. 66, No. 1721, Dec. 23, 1927


Previous Issue: New Series, Vol. 66, No. 1720, Dec. 16, 1927
Next Issue: New Series, Vol. 66, No. 1722, Dec. 30, 1927


Front Matter (8 pp.)
Some Applications of Physical Chemistry to Medicine, pp. 603-610
Albert P. Mathews

The Abuse of Water, pp. 610-611
James Kendall

Frank W. Very, pp. 611-612
H. H. Clayton


Scientific Events
Building Program of the U. S. Department of Agriculture, p. 612
Guide-Lecture Tours at the Field Museum, pp. 612-613
The Cleveland Meeting of the Geological Society of America, p. 613
Charles P. Berkey
Presentation of the Royal Society Medals, pp. 613-614


Scientific Notes and News, pp. 614-618
University and Educational Notes, pp. 618-619


Discussion and Correspondence
The Control of Diabetes in Siam by the Use of Solanaceous Plants, pp. 619-620
Hugh M. Smith
E.M.F. Induced in a Straight Wire by a Current in a Parallel Straight Conductor, pp. 620-621
J. B. Whitehead; Leigh Page
Sir Jagadis Chunder Bose and His Latest Book, pp. 621-622
George J. Peirce
When is Mid-Winter?, pp. 622-624
Bernhard H. Dawson


Quotations
International Congresses, pp. 624-625


Scientific Books
----------------, pp. 625-626
Handbook of the Echinoderms of the British Isles
Th. Mortensen
Review author[s]: Hubert Lyman Clark


Ionization by Positive Ions, pp. 627-629
Leonard B. Loeb


Special Articles
Correlation between Electromotive Series and Oxidation Potentials and Plant and Animal Nutrition, pp. 629-631
H. P. Cooper; J. K. Wilson
Inhibition of Enzymatic Action as a Possible Factor in the Resistance of Plants to Disease, pp. 631-632
L. J. Klotz


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 66, No. 1720, Dec. 16, 1927
Next Issue: New Series, Vol. 66, No. 1722, Dec. 30, 1927



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Science, New Series, Vol. 66, No. 1722, Dec. 30, 1927


Previous Issue: New Series, Vol. 66, No. 1721, Dec. 23, 1927
Next Issue: New Series, Vol. 67, No. 1723, Jan. 6, 1928


Front Matter (8 pp.)


The American Association for the Advancement of Science
The Notion of Probable Error in Elementary Statistics, pp. 633-637
Edward V. Huntington
The General Radiation, pp. 637-640
William Duane


Fundamental Science and War, pp. 640-645
P. L. K. Gross


Scientific Events
Award of the Conway Evans Prize to Sir Charles Sherrington, p. 645
Explorations in the Region of Lakes Titicaca and Poopo, p. 645
The Stoll-McCracken Siberian-Arctic Expedition, p. 646
The New Allegheny Forest Experiment Station, pp. 646-647
The Long Island Biological Association, p. 647


Scientific Notes and News, pp. 647-651
University and Educational Notes, pp. 651-652


Discussion and Correspondence
Weight and Temperature, pp. 652-653
P. G. Nutting
Influence of Polarized Light on Photochemical Reactions, p. 653
David I. Macht
Flood Erosion at Cavendish, Vermont, pp. 653-654
E. C. Jacobs
Illustrations Which Do Not Illuminate the Problem, pp. 654-655
Willem J. Luyten
Origin of the Prairie, pp. 655-656
Arthur M. Miller


Scientific Books
----------------, p. 656
Bodenablagerungen und Entwicklungstypen der Seen
G. Lundqvist
Die Tierwelt der Unterirdischen Gewässer
P. A. Chappuis
Review author[s]: C. Juday


Scientific Apparatus and Laboratory Methods
The Spirals within the Termite Gut for Class Use, pp. 656-657
T. D. Beckwith; S. F. Light
A Cover-Slip Carrier, p. 658
Hugh H. Darby


Special Articles
On the Change from the Convective to the Spark Discharge of the Mucronate Electrode, pp. 658-659
Carl Barus
Cold Storage Versus Room Temperatures on Keeping Qualities of Fruits, pp. 660-661
E. L. Overholser
Relation of the Adjustment of Soil Reaction to Black Root-Rot of Tobacco, pp. 661-662
William L. Doran
Enteromorpha and the Food of Oysters, p. 662
G. W. Martin


Science News, pp. x+xii+xiv

Previous Issue: New Series, Vol. 66, No. 1721, Dec. 23, 1927
Next Issue: New Series, Vol. 67, No. 1723, Jan. 6, 1928



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