Science, New Series, Vol. 53, No. 1358, Jan. 7, 1921


Previous Issue: New Series, Vol. 52, No. 1357, Dec. 31, 1920
Next Issue: New Series, Vol. 53, No. 1359, Jan. 14, 1921


Volume Information (8 pp.)
Front Matter (1 p.)


The American Association for the Advancement of Science
The Chicago Meeting, pp. 1-4


Some Economic Phases of Botany, pp. 4-15
L. H. Pammel


Scientific Events
The Bowdoin Medical School, p. 15
The Directorship of the Bureau of Mines, pp. 15-16
International Eugenics Congress, pp. 16-17
The American Engineering Council, p. 17


Scientific Notes and News, pp. 17-19
University and Educational News, pp. 19-20


Discussion and Correspondence
Anthropometric Measurements, p. 20
Harris Hawthorne Wilder
A New Dike near Ithaca, N. Y., pp. 20-21
Pearl Sheldon
The Hawaiian Olona, p. 21
William T. Brigham


Quotations
Professor Michelson on the Application of Interference Methods to Astronomical Measurements, pp. 21-22


Causes of Climatic Oscillations in Prehistoric Time, Particularly in the Ice Age, pp. 22-23
Chester A. Reeds


Special Articles
Observations on the Accumulation of Carbon Dioxide from Strawberries in Refrigerator Cars, pp. 23-24
H. F. Bergman


The American Chemical Society, pp. 24-26
Charles L. Parsons

Back Matter (1 p.)

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Next Issue: New Series, Vol. 53, No. 1359, Jan. 14, 1921



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Science, New Series, Vol. 53, No. 1359, Jan. 14, 1921


Previous Issue: New Series, Vol. 53, No. 1358, Jan. 7, 1921
Next Issue: New Series, Vol. 53, No. 1360, Jan. 21, 1921


Front Matter (1 p.)


The American Association for the Advancement of Science
The Future of Agricultural Science in the American Association for the Advancement of Science, pp. 27-29
A. F. Woods


Investigation of the Flora of Northern South America, pp. 29-30
N. L. Britton

Practical Psychology, pp. 30-35
J. McKeen Cattell

John Nelson Stockwell, pp. 35-37
Charles S. Howe


Scientific Events
Chair of Logic at the University of London, pp. 37-38
Course on Science as Applied to Industry, p. 38
Standardization of Industrial Laboratory Apparatus, pp. 38-39


Scientific Notes and News, pp. 39-41
University and Educational News, pp. 41-42


Discussion and Correspondence
Leucochloridium in America, pp. 42-43
Thomas Byrd Magath
Some Simple Generators of High Frequency Oscillations, pp. 43-44
Anders Bull
Romancing in Science, p. 44
David Wilbur Horn
A Thrice Told Tale, pp. 44-45
R. W. Wood


Are the Lance and Fort Union Formations of Mesozoic Time?, pp. 45-47
Charles Schuchert


Special Articles
An Adjustable Embouchuer, pp. 47-48
Carl Barus


The Western Division of the American Association for the Advancement of Science, pp. 48-49
The American Chemical Society, pp. 49-52
Charles L. Parsons

Back Matter (1 p.)

Previous Issue: New Series, Vol. 53, No. 1358, Jan. 7, 1921
Next Issue: New Series, Vol. 53, No. 1360, Jan. 21, 1921



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Science, New Series, Vol. 53, No. 1360, Jan. 21, 1921


Previous Issue: New Series, Vol. 53, No. 1359, Jan. 14, 1921
Next Issue: New Series, Vol. 53, No. 1361, Jan. 28, 1921


Front Matter (1 p.)


The American Association for the Advancement of Science
The Organization of Research, pp. 53-67
William Morton Wheeler


Nelson R. Wood, pp. 67-68
R. W. Shufeldt

Franz Steindachner, p. 68
David Starr Jordan


Scientific Events
Sigma Xi at the University of Pennsylvania, pp. 68-69
First Meeting of the Cellulose Section American Chemical Society, p. 69
G. J. Esseln
Forestry Legislation by the National Government, pp. 69-70
Resolutions of the National Research Council on the Death of Henry A. Bumstead, p. 70


Scientific Notes and News, pp. 70-73
University and Educational News, p. 73


Discussion and Correspondence
Natural Areas and Biological Science, pp. 73-74
Barrington Moore
Professor Pavlov, p. 74
S. Morgulis
A Question of Bibliography, pp. 74-75
Rose M. MacDonald
Researches in Helminthology and Parasitology, p. 75
Joseph Leidy


Special Articles
A Simple Device for Giving Anesthetics, pp. 75-76
J. R. Slonaker


The American Association for the Advancement of Science
Section F--Zoology, p. 76
H. V. Neal


Back Matter (1 p.)

Previous Issue: New Series, Vol. 53, No. 1359, Jan. 14, 1921
Next Issue: New Series, Vol. 53, No. 1361, Jan. 28, 1921



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Science, New Series, Vol. 53, No. 1361, Jan. 28, 1921


Previous Issue: New Series, Vol. 53, No. 1360, Jan. 21, 1921
Next Issue: New Series, Vol. 53, No. 1362, Feb. 4, 1921


Front Matter (1 p.)
Electrification of Water and Osmotic Flow, pp. 77-84
Jacques Loeb

Henry Andrews Bumstead, pp. 84-85
R. A. Millikan


Scientific Events
Polar Research, pp. 85-86
Anthropological Publications of the Canadian Arctic Expedition, p. 86
Administration of the Alaska Forests, pp. 86-87
Fishery Matters in Congress, p. 87
The Washington Academy of Sciences, pp. 87-88
Samuel J. Meltzer, p. 88


Scientific Notes and News, pp. 88-90
University and Educational News, p. 90


Discussion and Correspondence
A Meteor Fall in the Atlantic, pp. 90-91
Henry S. Washington
Musical Notation, pp. 91-92
T. P. Hall
Pulsation of a Cat's Heart after Death, p. 92
Horace Gunthorp
Stock Cultures of a Protozoon, pp. 92-93
Joseph H. Bodine


Quotations
The British Committee for Aiding Men of Letters and Science in Russia, pp. 93-94
Montague of Beaulieu; Ernest Barker; E. P. Cathcart; A. S. Eddington; I. Gollancz; R. A. Gregory; P. Chalmers Mitchell; Bernard Pares; Arthur Schuster; C. S. Sherrington; A. E. Shipley; H. G. Wells; A. Smith Woodward; C. Hagberg Wright


Special Articles
Star-Time Observations with an Engineer's Y-Level, pp. 94-95
Willard J. Fisher


The American Society of Naturalists, pp. 95-97
A. Franklin Shull

The American Society of Zoologists, pp. 97-98
W. C. Allee

Back Matter (1 p.)

Previous Issue: New Series, Vol. 53, No. 1360, Jan. 21, 1921
Next Issue: New Series, Vol. 53, No. 1362, Feb. 4, 1921



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Science, New Series, Vol. 53, No. 1362, Feb. 4, 1921


Previous Issue: New Series, Vol. 53, No. 1361, Jan. 28, 1921
Next Issue: New Series, Vol. 53, No. 1363, Feb. 11, 1921


Front Matter (1 p.)
Samuel James Meltzer, pp. 99-106
W. H. Howell

The Relations of Psychology to Medicine, pp. 106-111
Robert M. Yerkes


Scientific Events
Medical Education in China, pp. 111-112
The Forest Service, p. 112
Gypsum Fellowships, pp. 112-113
The National Museum and Dr. Jordan, p. 113


Scientific Notes and News, pp. 113-116
University and Educational News, p. 116


Discussion and Correspondence
Astronomical Research in the South-Eastern States, pp. 116-117
W. W. Campbell
Technical Study at Oberlin College, p. 117
Maynard M. Metcalf
Further Remarks on ``The Use of the Term Fossil'', pp. 117-118
Richard M. Field
The Biographical Directory of American Men of Science, p. 118
J. McKeen Cattell


Quotations
When an Invention is Not an Invention, pp. 118-119


Scientific Books
----------------, pp. 119-120
``The Airplane.''
Frederick Bedell
Review author[s]: Lionel S. Marks


Special Articles
A Further Note on War and Population, pp. 120-121
Raymond Pearl


The Washington Conference on the History of Science, p. 122
Lynn Thorndike

Back Matter (1 p.)

Previous Issue: New Series, Vol. 53, No. 1361, Jan. 28, 1921
Next Issue: New Series, Vol. 53, No. 1363, Feb. 11, 1921



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Science, New Series, Vol. 53, No. 1363, Feb. 11, 1921


Previous Issue: New Series, Vol. 53, No. 1362, Feb. 4, 1921
Next Issue: New Series, Vol. 53, No. 1364, Feb. 18, 1921


Front Matter (1 p.)
Dinner in Honor of Dr. Keen, pp. 123-124
John H. Jopson

Address of Dr. Keen, pp. 124-129
The Relation of Mendelism and the Mutation Theory to Natural Selection, pp. 129-131
C. C. Nutting


Scientific Events
Professor Calmette on a Vaccine for Tuberculosis, pp. 131-132
Awards of the Paris Academy of Sciences, pp. 132-133
The University of London's Physiological Laboratory, p. 133
Popular Lectures on Scientific Subjects at the California Academy of Sciences, pp. 133-134


Scientific Notes and News, pp. 134-137
University and Educational News, p. 137


Discussion and Correspondence
Thrice Told Tales, pp. 137-139
T. C. Mendenhall; T C. M; Jonathan Wright
Reply to Professor Horn, p. 139
Florian Cajori
A Correction, p. 139
David Wilbur Horn
Memoir of G. K. Gilbert, pp. 139-140
W. M. Davis


Quotations
The Printing of Astronomical Observations, pp. 140-141


Special Articles
On The Stability of the Acid-Base Equilibrium of the Blood in Normal and in Naturally Nephropathic Animals, pp. 141-143
Wm. DeB. MacNider


The American Chemical Society, pp. 143-146
Charles L. Parsons

Back Matter (1 p.)

Previous Issue: New Series, Vol. 53, No. 1362, Feb. 4, 1921
Next Issue: New Series, Vol. 53, No. 1364, Feb. 18, 1921



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Science, New Series, Vol. 53, No. 1364, Feb. 18, 1921


Previous Issue: New Series, Vol. 53, No. 1363, Feb. 11, 1921
Next Issue: New Series, Vol. 53, No. 1365, Feb. 25, 1921


Front Matter (1 p.)


The American Association for the Advancement of Science
The Practical Value of Anthropology to Our Nation, pp. 147-156
Albert Ernest Jenks


A Brief Historical Consideration of the Metric System, pp. 156-157
Louis C. Karpinski


Scientific Events
The Annual Meeting of the Board of Trustees of the American Museum of Natural History, pp. 157-158
Expeditions and Acquisitions of the American Museum, pp. 158-159
The Biological Field Station of Cornell University, p. 159
American Foundation in France for Prehistoric Studies, pp. 159-160


Scientific Notes and News, pp. 160-163
University and Educational News, p. 163


Discussion and Correspondence
On the Occurrence of Aëdes Sollicitans in Fresh Water Polluted by Acid Waste, p. 163
Samuel F. Hildebrand
The History of Science and the American Association for the Advancement of Science, pp. 163-164
Florian Cajori
Concerning `` Aerial Photo-Hydrography '', p. 164
Willis T. Lee
Soil Color Standards, pp. 164-165
J. G. Hutton


Scientific Books
----------------, pp. 165-167
The Letters of William James
Henry James
Review author[s]: Edward L. Thorndike


Special Articles
Non-Disjunction of the Fourth Chromosome of Drosophila, p. 167
C. C. Little


The American Association for the Advancement of Science
Report of the Treasurer for 1920, pp. 167-169
Herbert A. Gill
Financial Report of the Permanent Secretary for the Partial Year, April 1, 1920, to September 30, 1920, pp. 169-170
Herbert A. Gill


Back Matter (1 p.)

Previous Issue: New Series, Vol. 53, No. 1363, Feb. 11, 1921
Next Issue: New Series, Vol. 53, No. 1365, Feb. 25, 1921



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Science, New Series, Vol. 53, No. 1365, Feb. 25, 1921


Previous Issue: New Series, Vol. 53, No. 1364, Feb. 18, 1921
Next Issue: New Series, Vol. 53, No. 1366, Mar. 4, 1921


Front Matter (1 p.)
The Public Health Work of Professor Sedgwick, pp. 171-178
George C. Whipple

Our Disappearing Wild Plants, pp. 178-180
Albert A. Hansen

A Suggestion for Making Our Scientific Publications More Useful and Our Post-Offices a Center of Information, pp. 180-182
Herdman F. Cleland


Scientific Events
The Institute of Human Paleontology, p. 182
A New Canadian Agricultural Journal, pp. 182-183
Warner J. Morse
Scientific Lectures at the University of Minnesota, pp. 183-184
The Marsh Fund of the National Academy of Sciences, p. 184
John C. Merriam
The Election of Dr. Angell as President of Yale University, pp. 184-185


Scientific Notes and News, pp. 185-187
University and Educational News, p. 187


Discussion and Correspondence
On a Bottle Which Drifted from the Gulf of Maine to the Azores, pp. 187-188
James W. Moor
An Adjustable Embouchure, pp. 188-189
Arthur Gordon Webster
Variation in Taraxacum, p. 189
Paul B. Sears


Scientific Books
----------------, pp. 189-190
Pharmaceutical Botany, A Text-Book for Students of Pharmacy and Science
Heber W. Youngken
Review author[s]: H. H. M. Bowman


Special Articles
Two Limestone Formations of the Cretaceous of Texas Which Transgress Time Diagonally, pp. 190-191
Robert T. Hill


The American Mathematical Society, pp. 191-193
R. G. D. Richardson

The American Astronomical Society, pp. 193-194
Joel Stebbins

Back Matter (1 p.)

Previous Issue: New Series, Vol. 53, No. 1364, Feb. 18, 1921
Next Issue: New Series, Vol. 53, No. 1366, Mar. 4, 1921



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Science, New Series, Vol. 53, No. 1366, Mar. 4, 1921


Previous Issue: New Series, Vol. 53, No. 1365, Feb. 25, 1921
Next Issue: New Series, Vol. 53, No. 1367, Mar. 11, 1921


Front Matter (1 p.)


The American Association for the Advancement of Science
The Structural Failure of the Lithosphere, pp. 195-207
C. K. Leith


Scientific Events
Dinner in Honor of the Retiring Secretary of Agriculture, pp. 207-208
Congress on Medical Education, pp. 208-209
The Manufacture of Chemicals for Research Work, p. 209
Institute for Food Research at Stanford University, pp. 209-210


Scientific Notes and News, pp. 210-211
University and Educational News, p. 211


Discussion and Correspondence
Human Nature as a Repeating Factor: That Thrice Told Tale, pp. 211-212
W. W. Campbell
Galileo and Wood, pp. 212-213
Arthur Gordon Webster
Archeological Specimens for Museums, pp. 213-214
W. K. Moorehead
Publications of the Vienna Museum, p. 214
David Starr Jordan


Quotations
The Protection of British Optical Industries, pp. 214-215


Scientific Books
----------------, pp. 215-216
Mineralogy: An Introduction to the Study of Minerals and Crystals
Edward H. Kraus; Walter F. Hunt
Review author[s]: Edgar T. Wherry


Special Articles
Acid Production by a New Sulfur-Oxidizing Bacterium, p. 216
Selman A. Waksman; Jacob S. Joffe


The American Chemical Society, pp. 217-218
Charles L. Parsons

Back Matter (1 p.)

Previous Issue: New Series, Vol. 53, No. 1365, Feb. 25, 1921
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Science, New Series, Vol. 53, No. 1367, Mar. 11, 1921


Previous Issue: New Series, Vol. 53, No. 1366, Mar. 4, 1921
Next Issue: New Series, Vol. 53, No. 1368, Mar. 18, 1921


Front Matter (1 p.)
The Future of Mineralogy in America, pp. 219-226
Edward H. Kraus

Sex in the Trematode Family Schistosomidæ, pp. 226-228
William W. Cort

Origin of Potato Rust, pp. 228-229
J. C. Arthur


Scientific Events
A World Atlas of Commercial Geology, pp. 229-230
Awards of the Loutreuil Foundation of the Paris Academy, p. 230
The American Journal of Tropical Medicine, p. 231
The Scientific Staff of the American Museum of Natural History, pp. 231-232


Scientific Notes and News, pp. 232-235
University and Educational News, p. 235


Discussion and Correspondence
Musical Notation, pp. 235-236
R. P. Baker
Mirage at Sea, p. 236
Willard J. Fisher
The Sidewalk Mirage, p. 236
C. P. Du Shane
A Rainbow at Night, pp. 236-237
Frank L. Griffin


Scientific Books
----------------, pp. 237-238
Gli Scienziati Italiani, dall'inizio del medio evo ai nostri giorni. Repertorio biobibliografico dei filosofii, matematici, astronomi, fisici, chimici, naturalisti, medici, e geografi Italiani
Diretto da Aldo Mieli
Review author[s]: Louis C. Karpinski


Special Articles
The Einstein Solar Field and Space of Six Dimensions, pp. 238-239
Edward Kasner


The American Chemical Society, pp. 239-242
Charles L. Parsons


The American Association for the Advancement of Science
Section E--Geology and Geography, p. 242
Rollin T. Chamberlin


Back Matter (1 p.)

Previous Issue: New Series, Vol. 53, No. 1366, Mar. 4, 1921
Next Issue: New Series, Vol. 53, No. 1368, Mar. 18, 1921



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Science, New Series, Vol. 53, No. 1368, Mar. 18, 1921


Previous Issue: New Series, Vol. 53, No. 1367, Mar. 11, 1921
Next Issue: New Series, Vol. 53, No. 1369, Mar. 25, 1921


Front Matter (1 p.)
Medicine and the Public, pp. 243-250
William Gerry Morgan

The Scientific Basis of Science Teaching, pp. 250-252
Elliot R. Downing


Scientific Events
Biological Survey of the State of Washington, p. 252
The Preservation of Natural Conditions, pp. 252-253
Scientific Lectures at Ottawa, p. 253
The Resignation of Professor Flint, p. 253
The International Union of Radio Telegraphy, pp. 253-254


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


Discussion and Correspondence
Section L of the American Association for the Advancement of Science, pp. 257-258
G. A. Miller
Fossils--Are They Merely ``Prehistoric,'' Or Must They Also Be ``Geologic''?, pp. 258-259
Arthur M. Miller
Thrice Told Tales, p. 259
Alexander McAdie
American Publications and International Exchange, p. 259
Maynard M. Metcalf


Scientific Books
----------------, pp. 259-260
History and Bibliography of Anatomic Illustration
Ludwig Choulant
Review author[s]: Roy L. Moodie


Special Articles
Amœboid Movement, Tissue Formation and Consistency of Protoplasm, pp. 261-262
Leo Loeb
The Relative Numbers of Twins and Triplets, pp. 262-263
Charles Zeleny


The American Chemical Society, pp. 263-267
Charles L. Parsons

Association of American Geographers, pp. 267-268
Richard Elwood Dodge

Back Matter (1 p.)

Previous Issue: New Series, Vol. 53, No. 1367, Mar. 11, 1921
Next Issue: New Series, Vol. 53, No. 1369, Mar. 25, 1921



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Science, New Series, Vol. 53, No. 1369, Mar. 25, 1921


Previous Issue: New Series, Vol. 53, No. 1368, Mar. 18, 1921
Next Issue: New Series, Vol. 53, No. 1370, Apr. 1, 1921


Front Matter (1 p.)
Plants and Plant Culture, pp. 269-279
Charles V. Piper


Scientific Events
The Carnegie Trust for Scottish Universities, p. 279
Meeting of the Organizing Committees of the Sections of the British Association, p. 280
The Personnel Research Federation, pp. 280-281
Grants for Research Made by the American Association for the Advancement of Science, pp. 281-282
Joel Stebbins


Scientific Notes and News, pp. 282-286
University and Educational News, p. 286


Discussion and Correspondence
The Preglacial Outlet of Lake Erie, pp. 286-287
G. Frederick Wright
Relativity and Estimates of Star Diameters, pp. 287-288
Reginald A. Fessenden
The Conservation of Game and Fur-Bearing Animals, p. 288
Henry B. Ward


Scientific Books
----------------, pp. 288-289
A Laboratory Manual of Anthropometry
Harris H. Wilder
Review author[s]: George Grant MacCurdy


The Production of Biological Stains in America, pp. 289-290
H. J. Conn


Special Articles
The Structure of the Static Atom, pp. 290-293
Irving Langmuir


The Oklahoma Academy of Science, pp. 293-294
L. B. Nice

The Western Society of Naturalists--Northwest Section, p. 294
Geo. B. Rigg

Back Matter (1 p.)

Previous Issue: New Series, Vol. 53, No. 1368, Mar. 18, 1921
Next Issue: New Series, Vol. 53, No. 1370, Apr. 1, 1921



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Science, New Series, Vol. 53, No. 1370, Apr. 1, 1921


Previous Issue: New Series, Vol. 53, No. 1369, Mar. 25, 1921
Next Issue: New Series, Vol. 53, No. 1371, Apr. 8, 1921


Front Matter (1 p.)
An Illustration of Practical Results from the Protection of Natural Resoruces, pp. 295-298
R. E. Coker

National Temperament in Scientific Investigations, pp. 298-301
R. D. Carmichael


Scientific Events
The Proposed New Challenger Expedition, pp. 301-302
The Nolan Patent Office Bill, p. 302
The American Philosophical Society, pp. 302-303


Scientific Notes and News, pp. 303-304
University and Educational News, p. 304


Discussion and Correspondence
Are the Lance and Fort Union Formations of Mesozoic Time?, pp. 304-308
Whitman Cross; F. H. Knowlton
Proof of Non-Disjunction for the Fourth Chromosome of Drosophila Melanogaster, p. 308
C. B. Bridges
Surveying from the Air, pp. 308-310
E. Lester Jones


Scientific Books
----------------, pp. 310-312
Physics of the Air
W. J. Humphreys
Review author[s]: Alexander McAdie


Report of the Committee on Nomenclature of the Botanical Society of America, pp. 312-314
A. S. Hitchcock


Special Articles
A Fish, with a Luminous Organ, Designed for the Growth of Luminous Bacteria, pp. 314-315
E. Newton Harvey


The American Association for the Advancement of Science
Section L--History of Science Sessions, pp. 315-318
Frederick E. Brasch


The Optical Society of America, pp. 318-320
Irwin G. Priest

Back Matter (1 p.)

Previous Issue: New Series, Vol. 53, No. 1369, Mar. 25, 1921
Next Issue: New Series, Vol. 53, No. 1371, Apr. 8, 1921



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Science, New Series, Vol. 53, No. 1371, Apr. 8, 1921


Previous Issue: New Series, Vol. 53, No. 1370, Apr. 1, 1921
Next Issue: New Series, Vol. 53, No. 1372, Apr. 15, 1921


Front Matter (1 p.)
A New Agency for the Popularization of Science, pp. 321-323
Edwin E. Slosson

The Distribution of Hookworms in the Zoological Regions, pp. 323-324
Samuel T. Darling

Vegetation Mapping, pp. 325-327
Paul B. Sears


Scientific Events
The Systematization of Plankton Investigations, p. 327
Austin H. Clark
Madame Curie's Visit to America, pp. 327-328
The Rochester Meeting of the American Chemical Society, pp. 328-329
Charles L. Parsons
The Herter Lectureship, p. 329


Scientific Notes and News, pp. 329-332
University and Educational News, pp. 332-333


Discussion and Correspondence
Osteomyelitis in the Permian, p. 333
Roy L. Moodie
The Chromosomes of Conocephalum Conicum, p. 333
Amos M. Showalter
The Cost of German Publications, pp. 333-334
M. W. Senstius
The Cost of American Publications in Roumania, p. 335
E. G. Racovitza
Requests for Biological Publications, p. 335
Charles A. Kofoid


Scientific Books
----------------, pp. 335-336
Root Development in the Grassland Formation, a Correlation of the Root Systems of Native Vegetation and Crop Plants
John E. Weaver
Review author[s]: B. E. Livingston


Notes on Meteorology and Climatology, pp. 337-339
C. LeRoy Meisinger


Special Articles
A New Type of Inheritance, pp. 339-342
W. E. Castle


The American Association for the Advancement of Science
Section A and Associated Mathematical Organizations, pp. 342-344
Wm. H. Roever; Arnold Dresden; W. D. Cairns


The American Society of Agronomy, pp. 344-346
P. E. Brown

Back Matter (1 p.)

Previous Issue: New Series, Vol. 53, No. 1370, Apr. 1, 1921
Next Issue: New Series, Vol. 53, No. 1372, Apr. 15, 1921



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Science, New Series, Vol. 53, No. 1372, Apr. 15, 1921


Previous Issue: New Series, Vol. 53, No. 1371, Apr. 8, 1921
Next Issue: New Series, Vol. 53, No. 1373, Apr. 22, 1921


Front Matter (1 p.)
The Photochemistry of the Sensitivity of Animals to Light, pp. 347-352
Selig Hecht

The Mechanism of Injury and Recovery of the Cell, pp. 352-356
W. J. V. Osterhout

Isao Iijima, p. 356
Bashford Dean


Scientific Events
Ex-Secretary Meredith on Research, pp. 356-357
Scientific Legislation, pp. 357-358
Lectures before the Sioux City Academy, pp. 358-359
Cooperation of National Health Agencies, pp. 359-360
The American Meteorological Society, p. 360
Charles F. Brooks
The Edinburgh Meeting of the British Association, p. 360


Scientific Notes and News, pp. 360-363
University and Educational News, p. 363


Discussion and Correspondence
Positive Ray Analysis of Lithium, pp. 363-364
A. J. Dempster
A Remedy for Mange in White Rats, p. 364
Cornelia Kennedy
Impossible (?) Stories, p. 364
Samuel G. Barton


Quotations
International Scientific Organization, pp. 364-367


Scientific Books
The Terrestrial Life Associated with the Coals of Northern France, pp. 367-368
Review author[s]: Charles Schuchert


Special Articles
The Relativity Shift of Spectrum Lines, pp. 368-370
Raymond T. Birge
A New High Temperature Record for Growth, pp. 370-372
D. T. MacDougal


The American Mathematical Society, p. 372
R. G. D. Richardson

Previous Issue: New Series, Vol. 53, No. 1371, Apr. 8, 1921
Next Issue: New Series, Vol. 53, No. 1373, Apr. 22, 1921



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Science, New Series, Vol. 53, No. 1373, Apr. 22, 1921


Previous Issue: New Series, Vol. 53, No. 1372, Apr. 15, 1921
Next Issue: New Series, Vol. 53, No. 1374, Apr. 29, 1921


Front Matter (1 p.)
Sherburne Wesley Burnham, 1838-1921, pp. 373-377
Edwin B. Frost

The Centennial Expedition of Indiana University to Peru, pp. 377-379
William Ray Allen


Scientific Events
Illinois State Parks, p. 380
Industrial Fellowships of the Mellon Institute, pp. 380-381
Appointments Committee for Russian Scientific and Literary Men, p. 381
The Visit of Madame Curie, pp. 381-382
Lectures by Professor Einstein, p. 382


Scientific Notes and News, pp. 382-386
University and Educational News, pp. 386-387


Discussion and Correspondence
Genetics of the ``Chinchilla'' Rabbit, pp. 387-388
W. E. Castle
The Early History of Litmus in Bacteriology, pp. 388-389
Ivan C. Hall
Another Drift Bottle Which Crossed the Atlantic, p. 389
James W. Mavor
Newspaper Science, p. 389
Orin Tugman


Scientific Books
----------------, pp. 389-391
Atmospheric Pollution
Review author[s]: Alexander McAdie


Special Articles
The Mechanism of an Enzyme Reaction as Exemplified by Pepsin Digestion, pp. 391-393
John H. Northrop
Knipp's Singing Tube, pp. 393-395
F. R. Watson


The American Physiological Society, pp. 395-398
Chas. W. Greene

Previous Issue: New Series, Vol. 53, No. 1372, Apr. 15, 1921
Next Issue: New Series, Vol. 53, No. 1374, Apr. 29, 1921



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Science, New Series, Vol. 53, No. 1374, Apr. 29, 1921


Previous Issue: New Series, Vol. 53, No. 1373, Apr. 22, 1921
Next Issue: New Series, Vol. 53, No. 1375, May 6, 1921


Front Matter (1 p.)
Reorganization of the Work of the Federal Government, pp. 397-399
The American Engineering Council, pp. 399-402
Plagiarisms, pp. 402-406
Jonathan Wright

Conservation Conference on Resources of Interior Waters, pp. 406-407
R. E. Coker; V. E. Shelford; J. E. Krouse; A. S. Pearse; F. A. Stromster; R. L. Barney


Scientific Events
The American Engineering Council and Mr. Hoover, pp. 407-408
The Classification and Salaries of Government Employees, pp. 408-409
The Museums and Collections of Yale University, p. 409
The Heckscher Fund Grants of Cornell University, pp. 409-410


Scientific Notes and News, pp. 410-411
University and Educational News, pp. 411-412


Discussion and Correspondence
On the Use of the Terms ``Denudation,'' ``Erosion,'' ``Corrosion'' and ``Corrasion'', pp. 412-414
Malcolm H. Bissell
Euclid of Alexandria and the Bust of Euclid of Megara, pp. 414-415
Florian Cajori
Rainbow by Moonlight, p. 415
C. J. Elmore


Quotations
British Dyestuffs Corporation, pp. 415-416


Scientific Books
----------------, pp. 416-417
Practical Plant Biochemistry
Muriel Wheldale Onslow
Review author[s]: Clarence Austin Morrow
----------------, pp. 417-418
Anthropometry
Aleš Hrdlička
Review author[s]: E. A. Hooton


Special Articles
Subepithelial Glycogen Cells in Embryo and Recently Hatched Fish, pp. 418-420
Frederick W. Ellis
The Ovarian Cycle of Swine, pp. 420-421
George W. Corner


The National Academy of Sciences, pp. 421-422
C. G. Abbot

Previous Issue: New Series, Vol. 53, No. 1373, Apr. 22, 1921
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Science, New Series, Vol. 53, No. 1375, May 6, 1921


Previous Issue: New Series, Vol. 53, No. 1374, Apr. 29, 1921
Next Issue: New Series, Vol. 53, No. 1376, May 13, 1921


Front Matter (1 p.)
The Equilibrium Functions of the Internal Ear, pp. 423-429
S. S. Maxwell

Meeting of the Geneticists Interested in Agriculture, pp. 429-431
D. F. Jones

National Parks, p. 431
V. E. Shelford


Scientific Events
World Production of Coal in 1920, pp. 431-432
Top Minnows as Yellow Fever Eradicators, pp. 432-433
The National Botanic Garden, p. 433
Medical Prizes, pp. 433-434
The Committee on Physiological Optics of the National Research Council, p. 434


Scientific Notes and News, pp. 434-437
University and Educational Notes, p. 437


Discussion and Correspondence
Paleobotany as Viewed by Two Geologists, pp. 437-439
G. R. Wieland
Have Birds an Acute Sense of Sound Location, pp. 439-440
A. G. Pohlman


Quotations
Scientific Organization, pp. 440-441


Scientific Books
----------------, pp. 441-442
Catalogue of the Coleoptera of America North of Mexico
Charles W. Leng
Review author[s]: L. O. Howard


Notes on Meteorology and Climatology, pp. 442-444
C. LeRoy Meisinger


Special Articles
The Catalytic Properties of the Respiratory Metals, pp. 444-446
John F. Fulton
The Influence of Heat and Oxidation upon the Nutritive and Antiscorbutic Properties of Cow's Milk, p. 446
Edla V. Anderson; R. Adams Dutcher; C. H. Eckles; J. W. Wilbur

Previous Issue: New Series, Vol. 53, No. 1374, Apr. 29, 1921
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Science, New Series, Vol. 53, No. 1376, May 13, 1921


Previous Issue: New Series, Vol. 53, No. 1375, May 6, 1921
Next Issue: New Series, Vol. 53, No. 1377, May 20, 1921


Front Matter (1 p.)
The Biological Station at Fairport, Iowa, as an Agency for Public Service, pp. 447-451
R. E. Coker

Bryozoa as Food for Other Animals, pp. 451-453
Raymond C. Osburn

Copper in Animals and Plants, pp. 453-454
Richard A. Muttkowski


Scientific Events
Directors of Research and Scientific Qualifications, p. 454
Elections by the National Academy of Sciences, pp. 454-455
The Printers' Strike and the Publication of ``Science'', p. 455


Scientific Notes and News, pp. 455-456
University and Educational News, p. 456


Discussion and Correspondence
English Pronunciation for the Metric System, p. 457
Howard B. Frost
Extramundane Life, p. 457
Hubert Lyman Clark; W. W. Campbell


Scientific Books
----------------, pp. 458-459
The Sumario Compendioso of Brother Juan Diez
David Eugene Smith
Review author[s]: G. A. Miller
----------------, pp. 459-460
Introduction à l'étude pétrographique des roches sédimentaires
M. Lucien Cayeux
Review author[s]: Marcus I. Goldman


Special Articles
Notes on the Occurrence of Gammerus Limnaeus Smith in a Saline Habitat, pp. 460-462
Ross Aiken Gortner; J. Arthur Harris
An Eyeless Daphnid, with Remarks on the Possible Origin of Eyeless Cave Animals, pp. 462-463
Arthur M. Banta


The Easter Meeting of the American Mathematical Society at Chicago, pp. 463-464
Arnold Dresden


The American Association for the Advancement of Science
Pacific Division, p. 464
W. W. Sargeant

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Previous Issue: New Series, Vol. 53, No. 1376, May 13, 1921
Next Issue: New Series, Vol. 53, No. 1378, May 27, 1921


Front Matter (1 p.)
The Electron Theory of Magnetism, pp. 465-475
S. J. Barnett


The American Association for the Advancement of Science
Spring Meeting of the Executive Committee, pp. 475-478
Burton E. Livingston


Medals of the National Academy of Sciences, pp. 478-480
E. E. Slosson

Third Award of the Daniel Giraud Elliot Medal, pp. 480-481
Henry Fairfield Osborn


Scientific Events
The United States Patent Office, pp. 481-482
The National Geographic Society, p. 482
Exchange of Professors of Engineering between American and French Universities, pp. 482-483
Grants from the Bache Fund, p. 483


Scientific Notes and News, pp. 483-484
University and Educational News, p. 484


Discussion and Correspondence
Effect of Dormant Lime Sulfur upon the Control of Apple Blotch, pp. 484-485
E. F. Guba
Crows and Starlings, p. 485
F. R. Welsh
The Synchronal Flashing of Fireflies, pp. 485-486
Otto A. Reinking
Franz Steindachner, p. 486
H. W. Wiley


Scientific Books
----------------, pp. 486-487
Chemische Krystallographie
P. Groth
Review author[s]: Edward H. Kraus


Special Articles
The Change in the Fat of Peanut-Fed Rabbits, p. 487
S. T. Dowell


The American Society of Mammalogists, pp. 487-488
Hartley H. T. Jackson

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Next Issue: New Series, Vol. 53, No. 1378, May 27, 1921



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Science, New Series, Vol. 53, No. 1378, May 27, 1921


Previous Issue: New Series, Vol. 53, No. 1377, May 20, 1921
Next Issue: New Series, Vol. 53, No. 1379, Jun. 3, 1921


Front Matter (1 p.)
On Acoustic Pressure and Acoustic Dilatation, pp. 489-494
Carl Barus


The American Association for the Advancement of Science
Duty on Scientific Apparatus for Educational Institutions, pp. 494-495


Scientific Events
`Science' and the Printers' Strike, pp. 495-496
The British Institute of Physics, p. 496
The Boston Meeting of the American Medical Association, pp. 496-497
Mme. Curie's Visit to the United States, pp. 497-498


Scientific Notes and News, pp. 498-499
University and Educational News, p. 499


Discussion and Correspondence
Primitive Notions of Light, pp. 499-500
Irwin G. Priest
A Section of the American Association on the History of Science, pp. 500-501
Louis C. Karpinski


Scientific Books
----------------, pp. 501-502
The Crisis of the Naval War
Viscount Jellicoe
Review author[s]: Alexander McAdie
----------------, pp. 502-503
Diseases of Economic Plants
F. L. Stevens
Review author[s]: Mel T. Cook


Special Articles
The Y-Chromosome in Mammals, pp. 503-504
Theophilus S. Painter


The Rochester Meeting of the American Chemical Society, p. 504
Charles L. Parsons

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Previous Issue: New Series, Vol. 53, No. 1378, May 27, 1921
Next Issue: New Series, Vol. 53, No. 1380, Jun. 10, 1921


Front Matter (1 p.)
The Duty of Scientific Men in Conservation, pp. 505-509
Henry S. Graves

President Harding's Presentation Address to Mme. Curie, pp. 509-510
Henry Platt Cushing, pp. 510-512
John M. Clarke; C. H. Smyth; R. Ruedemann


Scientific Events
An English Hospital for Nervous Disorders, pp. 512-513
The Gift to Mme. Curie, p. 513
Ruins in the Upper Canadian Valley, p. 513
Geological Expedition to China, pp. 513-514
Expedition to the Upper Basin of the Amazon, p. 514


Scientific Notes and News, pp. 514-515
University and Educational News, p. 515


Discussion and Correspondence
The Aurora of May 14, 1921, pp. 515-516
Frederick Slocum; John E. Smith
Russian Geologists, pp. 516-517
G. F. K.; E. T. W.


Scientific Books
----------------, p. 517
The Coccidœ. Tables for the Identification of the Sub-Families and Some of the More Important Genera and Species, Together with Discussions of their Anatomy and Life History
Alex. D. MacGillivray
Review author[s]: Wm. A. Riley
----------------, pp. 517-518
The Soils and Agriculture of the Southern States
Hugh Hammond Bennett
Review author[s]: Wm. B. Cobb


Special Articles
An Age-Computing Device, pp. 518-521
C. M. Kelley


Meeting of Committees on Conservation, pp. 521-522
Albert L. Barrows

The Western Society of Naturalists--San Jacinto Section, p. 522
F. J. Smiley

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Science, New Series, Vol. 53, No. 1380, Jun. 10, 1921


Previous Issue: New Series, Vol. 53, No. 1379, Jun. 3, 1921
Next Issue: New Series, Vol. 53, No. 1381, Jun. 17, 1921


Front Matter (1 p.)
Inaugural Address, pp. 523-527
Ernest Fox Nichols

Science and Community Trusts, pp. 527-529
Robert M. Yerkes


Scientific Events
The Medical School of Columbia University and the Presbyterian Hospital, p. 529
Gifts by Carnegie Corporation to Carnegie Institutes of Pittsburgh, pp. 529-530
Meetings of British and American Chemists, pp. 530-531
Organization of Members of the American Association at the Pennsylvania State College, p. 531


Scientific Notes and News, pp. 531-534
University and Educational News, p. 534


Discussion and Correspondence
Concerning Recent Auroras, May 13 and May 14, 1921, pp. 534-535
Elihu Thomson
The Landslide near Mont Blanc, pp. 535-536
W. M. D.
Extra-Mundane Life: A Comment, p. 536
Ellen Hayes


Scientific Books
----------------, pp. 536-539
The Health of the Industrial Worker
Edgar L. Collis; Major Greenwood
Review author[s]: Reynold A. Spaeth


Special Articles
Soil Acidity the Resultant of Chemical Phenomena, pp. 539-540
H. A. Noyes


The American Mathematical Society, p. 540
R. G. D. Richardson

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Next Issue: New Series, Vol. 53, No. 1381, Jun. 17, 1921



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Science, New Series, Vol. 53, No. 1381, Jun. 17, 1921


Previous Issue: New Series, Vol. 53, No. 1380, Jun. 10, 1921
Next Issue: New Series, Vol. 53, No. 1382, Jun. 24, 1921


Front Matter (1 p.)


The American Association for the Advancement of Science
A Decade of American Mathematics, pp. 541-548
O. D. Kellogg
Summary of a Report of the Permanent Secretary Concerning the Affairs of the Association, Submitted to the Executive Committee at Its Meeting, April 24, 1921, pp. 548-550
Burton E. Livingston


The Executive Committee on Natural Resources, pp. 550-552
John M. Clarke; Henry S. Graves; Barrington Moore


Scientific Events
The Increasing Use of United States Geological Survey Maps, p. 552
The Royal Society Conversazione, pp. 552-553


Scientific Notes and News, pp. 553-555
University and Educational Notes, pp. 555-556


Discussion and Correspondence
The Geographical Distribution of Hybrids, p. 556
E. C. Jeffrey
Star Diameters, pp. 556-557
Keivin Burns
Russian Scientific Men, p. 557
Vernon Kellogg


Special Articles
A Convenient Culture Medium for Daphnids, pp. 557-558
Arthur M. Banta


The Nebraska Academy of Science, p. 558
W. F. Hoyt

Previous Issue: New Series, Vol. 53, No. 1380, Jun. 10, 1921
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Science, New Series, Vol. 53, No. 1382, Jun. 24, 1921


Previous Issue: New Series, Vol. 53, No. 1381, Jun. 17, 1921
Next Issue: New Series, Vol. 54, No. 1383, Jul. 1, 1921


Front Matter (1 p.)
The Coral Reefs of Tutuila, Samoa, pp. 559-565
W. M. Davis

A Novel Magneto-Optical Effect, pp. 565-569
Elihu Thomson

Edward Bennett Rosa, p. 569
S. W. Stratton


Scientific Events
The Harpswell Laboratory, pp. 569-570
Presentation to Dr. Frederick Belding Power, pp. 570-571
Medallion of the Wisconsin Academy of Sciences, p. 571


Scientific Notes and News, pp. 571-573
University and Educational Notes, p. 573


Discussion and Correspondence
Newton's Corpuscular Theory of Light, p. 574
J. M. Schaeberle
German Surtaxes on Scientific Publications, pp. 574-575
C. Stuart Gager


Quotations
Centenary of the French Academy of Medicine, p. 575


Special Articles
Resistance to Stem Rust in Kanred Wheat, pp. 575-576
Ruth F. Allen


The American Chemical Society Rochester Meeting, pp. 576-582
Charles L. Parsons

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Previous Issue: New Series, Vol. 53, No. 1382, Jun. 24, 1921
Next Issue: New Series, Vol. 54, No. 1384, Jul. 8, 1921


Volume Information (7 pp.)
Front Matter (1 p.)
The Significance of Radium, pp. 1-8
R. A. Millikan

Lincoln Ware Riddle, p. 9
Winthrop J. V. Osterhout; Roland Thaxter; Merritt L. Fernald


Scientific Events
The Printers' Strike and Science, p. 9
Grant for the Study of Stellar Parallaxes, pp. 9-10
Honorary Degrees Conferred by Yale University, pp. 10-11
Honorary Degrees at Harvard University, p. 11


Scientific Notes and News, pp. 11-12
University and Educational News, p. 12


Discussion and Correspondence
Use of the Terms ``Erosion,'' ``Denudation,'' ``Corrasion'' and ``Corrosion'', p. 13
Frederic H. Lahee
The Breeding Habits of Ambystoma Tigrinum, p. 13
Ralph J. Gilmore
A Phenomenal Shoot, pp. 13-14
B. W. Wells
The Aurora of May 14, 1921, p. 14
A. E. Douglass
The Aurora Seen from Sinaloa, Mexico in Latitude 27 ° N, p. 14
J. Gary Lindley


Quotations
The Mount Everest Expedition, pp. 14-15


Special Articles
An Outline for Vascular Plants, pp. 15-16
Henry S. Conard


The American Chemical Society, pp. 16-18
Charles L. Parsons

Previous Issue: New Series, Vol. 53, No. 1382, Jun. 24, 1921
Next Issue: New Series, Vol. 54, No. 1384, Jul. 8, 1921



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Science, New Series, Vol. 54, No. 1384, Jul. 8, 1921


Previous Issue: New Series, Vol. 54, No. 1383, Jul. 1, 1921
Next Issue: New Series, Vol. 54, No. 1385, Jul. 15, 1921


Front Matter (1 p.)
The University and Research, pp. 19-23
Vernon Kellogg

The Metric System in Japan, pp. 23-24
Howard Richards


Scientific Events
The Paris Academy of Sciences, pp. 24-25
G. F. K.
The Iowa Lake Side Laboratory, p. 25
Jennings Anniversary Celebration, pp. 25-26


Scientific Notes and News, pp. 26-27
University and Educational News, p. 27


Discussion and Correspondence
The Cannonball Lance Formation, pp. 27-29
W. D. Matthew
Newcomb on Extra-Mundane Life, pp. 29-30
George C. Comstock


Quotations
Cooperative Indexing of Scientific Literature, p. 30


Special Articles
The Motions of the Planets and the Relativity Theory, pp. 30-34
Charles Lane Poor


The American Chemical Society, pp. 34-38
Charles L. Parsons

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Science, New Series, Vol. 54, No. 1385, Jul. 15, 1921


Previous Issue: New Series, Vol. 54, No. 1384, Jul. 8, 1921
Next Issue: New Series, Vol. 54, No. 1386, Jul. 22, 1921


Front Matter (1 p.)
The Responsibility of the Biologist in the Matter of Preserving Natural Conditions, pp. 39-43
F. B. Sumner

The National Geographic Society Completes Its Gifts of Big Trees, pp. 43-44
Meeting of the Executive Committee of Sigma XI, p. 45
Henry B. Ward

Berkeley Meeting of the Pacific Division of the American Association for the Advancement of Science, pp. 45-48


Scientific Events
John Harper Long, pp. 48-49
W. Lee Lewis
The School of Engineering of Princeton University, p. 49
The Rockefeller Institute for Medical Research, pp. 49-50


Scientific Notes and News, pp. 50-52
University and Educational News, pp. 52-53


Discussion and Correspondence
An Analogy between the Theories of Natural Selection and Electrolysis, p. 53
Carl Barus
National Temperament in Scientific Investigations, pp. 53-54
J. W. Clawson; R. D. Carmichael


Special Articles
The Prediction of the Physiological Action of Alcohols, p. 55
Oliver Kamm


The American Chemical Society, pp. 56-58
Charles L. Parsons

Previous Issue: New Series, Vol. 54, No. 1384, Jul. 8, 1921
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Science, New Series, Vol. 54, No. 1386, Jul. 22, 1921


Previous Issue: New Series, Vol. 54, No. 1385, Jul. 15, 1921
Next Issue: New Series, Vol. 54, No. 1387, Jul. 29, 1921


Front Matter (1 p.)
Types of Valence, pp. 59-67
Irving Langmuir

Professor H. Bruchmann, pp. 67-68
Douglas H. Campbell


Scientific Events
Field Work of the Smithsonian Institution, pp. 68-69
The Medical School of the University of Virginia, p. 69
The Science Club of the University of Texas, pp. 69-70
H. J. Ettlinger
The Rochester Meeting of the Optical Society of America, p. 70
Irwin G. Priest
American Engineers in Europe, pp. 70-71


Scientific Notes and News, pp. 71-72
University and Educational News, pp. 72-73


Discussion and Correspondence
The Geographic Distribution of Hybrids, pp. 73-74
M. L. Fernald
Albinism in the Black Bear, p. 74
Paul C. Standley
Bechhold's ``Capillary Phenomenon'' in Agriculture, p. 74
Jerome Alexander


Quotations
The Royal Institution, pp. 74-75


Scientific Books
----------------, pp. 75-78
Lake Maxinkuckee, a Physical and Biological Survey
Barton Warren Evermann
Review author[s]: T. L. Hankinson


Special Articles
An Explanation of Liesegang's Rings, pp. 78-80
Hugh McGuigan


The North Carolina Academy of Science, p. 80
C. S. Brimley

Previous Issue: New Series, Vol. 54, No. 1385, Jul. 15, 1921
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Science, New Series, Vol. 54, No. 1387, Jul. 29, 1921


Previous Issue: New Series, Vol. 54, No. 1386, Jul. 22, 1921
Next Issue: New Series, Vol. 54, No. 1388, Aug. 5, 1921


Front Matter (1 p.)
``Progressive Education'' in the Teaching of Pathology, pp. 81-84
Howard T. Karsner

A Novel Magneto-Optical Effect, pp. 84-85
Elihu Thomson


Scientific Events
Thomas Harriot, pp. 85-86
The International Institute of Agriculture, pp. 86-87
The Edinburgh Meeting of the British Association, p. 87


Scientific Notes and News, pp. 87-90
University and Educational News, p. 90


Discussion and Correspondence
A Living Galvanometer, pp. 90-91
George G. Scott; Joseph Tulgan
An Exception to Dollo's Law of the Ir-Reversibility of Evolution, pp. 91-92
G. C. Crampton


Scientific Books
Jonston's Natural History of Fishes, pp. 92-93
Review author[s]: David Starr Jordan


Special Articles
On a Method of Estimating the Number of Genetic Factors Concerned in Cases of Blending Inheritance, pp. 93-96
W. E. Castle


The Utah Academy of Sciences, pp. 96-97
C. Arthur Smith

The American Association for the Advancement of Science, p. 98
E. A. Hooton

Previous Issue: New Series, Vol. 54, No. 1386, Jul. 22, 1921
Next Issue: New Series, Vol. 54, No. 1388, Aug. 5, 1921



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Science, New Series, Vol. 54, No. 1388, Aug. 5, 1921


Previous Issue: New Series, Vol. 54, No. 1387, Jul. 29, 1921
Next Issue: New Series, Vol. 54, No. 1389, Aug. 12, 1921


Front Matter (1 p.)
Parasitism as a Factor in Disease, pp. 99-108
Theobald Smith

The First Appearance of the True Mastodon in America, p. 108
Henry Fairfield Osborn


Scientific Events
The Science Club of the University of Mississippi, pp. 108-109
C. F. De Garis
The Work of the Rockefeller Foundation, p. 109
The Exposition of Chemical Industries, pp. 109-110
The Chemical Meeting in New York City, p. 110


Scientific Notes and News, pp. 111-112
University and Educational News, p. 113


Discussion and Correspondence
A Defense of Professor Newcomb's Logic, p. 113
W. W. Campbell
Biological Control of Destructive Insects, pp. 113-114
Paul Popenoe
A Longlived Woodborer, p. 114
H. E. Jaques


Quotations
The Cost of Printing Scientific Works in England, pp. 114-115


Special Articles
A Bacterial Disease of Gladiolus, pp. 115-116
Lucia McCulloch


The American Chemical Society, pp. 116-118
Charles L. Parsons

Previous Issue: New Series, Vol. 54, No. 1387, Jul. 29, 1921
Next Issue: New Series, Vol. 54, No. 1389, Aug. 12, 1921



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Science, New Series, Vol. 54, No. 1389, Aug. 12, 1921


Previous Issue: New Series, Vol. 54, No. 1388, Aug. 5, 1921
Next Issue: New Series, Vol. 54, No. 1390, Aug. 19, 1921


Front Matter (1 p.)
The California Institute of Technology, pp. 119-120
The Course in General Zoology: Methods of Teaching, pp. 120-123
D. H. Wenrich

Louis Albert Fischer, pp. 123-125
C. W. Waidner


Scientific Events
The British National Physical Laboratory, p. 125
Resolutions of the Medical Board of the Johns Hopkins Hospital, pp. 125-126
The Human-Yale College of Medicine, p. 126
A New Museum at Castine, Maine, pp. 126-127


Scientific Notes and News, pp. 127-129
University and Educational Notes, p. 129


Discussion and Correspondence
``Denudation,'' ``Erosion,'' ``Corrosion'' and ``Corrasion'', pp. 130-131
Wilbur G. Foye
A Possible Factor in the Increasing Incidence of Goiter, p. 131
E. R. Hayhurst
The Social Aspects of Country Planning, pp. 131-132
C. J. Gilpin


Quotations
Customs Legislation in England, pp. 132-133


Special Articles
The Practical Significance of the Revolution of the Embryo in Aphid Eggs, pp. 133-135
A. C. Baker


The American Chemical Society, pp. 135-138
Charles L. Parsons

Previous Issue: New Series, Vol. 54, No. 1388, Aug. 5, 1921
Next Issue: New Series, Vol. 54, No. 1390, Aug. 19, 1921



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Science, New Series, Vol. 54, No. 1390, Aug. 19, 1921


Previous Issue: New Series, Vol. 54, No. 1389, Aug. 12, 1921
Next Issue: New Series, Vol. 54, No. 1391, Aug. 26, 1921


Front Matter (1 p.)


The American Association for the Advancement of Science
Some Present Aspects of Chemistry in the United States, pp. 139-146
B. F. Lovelace


An Ancient Skeleton Discovered in Ecuador, pp. 147-148
Marshall H. Saville


Scientific Events
The Mulford Biological Exploration of the Amazon Basin, p. 148
Educational Forestry, pp. 148-149
Lectures at the University of Michigan, p. 149
Booklets of the American Association for the Advancement of Science, pp. 149-150


Scientific Notes and News, pp. 150-152
University and Educational News, p. 152


Discussion and Correspondence
Another High-Temperature Record for Growth and Endurance, pp. 152-153
D. T. MacDougal; Earl B. Working
A Calculator for Converting Gas Chain Voltage into Equivalent CH+ or PH Values, pp. 153-154
Paul E. Klopsteg
Mathematics in Spanish-Speaking Countries, p. 154
G. A. Miller
The Earliest Bees, Wasps and Ants, pp. 154-155
T. D. A. Cockerell


Special Articles
The Pneumatic Paradox in Acoustics, pp. 155-156
Carl Barus


The Kentucky Academy of Science, pp. 156-158
Alfred M. Peter

Previous Issue: New Series, Vol. 54, No. 1389, Aug. 12, 1921
Next Issue: New Series, Vol. 54, No. 1391, Aug. 26, 1921



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Science, New Series, Vol. 54, No. 1391, Aug. 26, 1921


Previous Issue: New Series, Vol. 54, No. 1390, Aug. 19, 1921
Next Issue: New Series, Vol. 54, No. 1392, Sep. 2, 1921


Front Matter (1 p.)


The American Association for the Advancement of Science
Whose Business is the Public Health?, pp. 159-162
Frederick P. Gay


The Aboriginal Population of California, pp. 162-163
A. L. Kroeber

The Centenary of the Birth of Hermann Von Helmholtz, pp. 163-164
T. C. Mendenhall


Scientific Events
Deaths of German Men of Science, p. 165
Progress in the Work of Mapping the United States, pp. 165-166
The Tongass National Forest, p. 166
The Roosevelt Wild Life Memorial, pp. 166-167


Scientific Notes and News, pp. 167-169
University and Educational News, p. 169


Discussion and Correspondence
The Temple Hill (Orange County, N. Y.) Mastodon, p. 170
Sherman C. Bishop
A More Phenomenal Shoot, p. 170
W. F. Prouty
A Phytophthora Parasitic on Peony, pp. 170-171
H. W. Thurston; C. R. Orton


Quotations
Fair Weather Predictions, pp. 171-172


Special Articles
Note on the Use of the Duboscq Type of Colorimeter for the Demonstration of Differences in Surface Tension, pp. 172-173
Frederick S. Hammett
Variation of Individual Pigs in Economy of Gain, pp. 173-174
E. Roberts


The American Chemical Society, pp. 174-178
Charles L. Parsons

Previous Issue: New Series, Vol. 54, No. 1390, Aug. 19, 1921
Next Issue: New Series, Vol. 54, No. 1392, Sep. 2, 1921



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Science, New Series, Vol. 54, No. 1392, Sep. 2, 1921


Previous Issue: New Series, Vol. 54, No. 1391, Aug. 26, 1921
Next Issue: New Series, Vol. 54, No. 1393, Sep. 9, 1921


Front Matter (1 p.)
The Spirit of Investigation in Medicine, pp. 179-183
Leonard G. Rowntree

Observations of the Aurora at the Lowell Observatory May 14, 1921, pp. 183-187
Henry Norris Russell; V. M. Slipher; C. O. Lampland


Scientific Events
The Production of Fixed Nitrogen, pp. 187-188
Forestry Legislation, p. 188
The Harvard School of Public Health, pp. 188-189


Scientific Notes and News, pp. 189-192
University and Educational News, pp. 192-193


Discussion and Correspondence
An Important but Unnamed Radioactive Quantity, p. 193
N. Ernest Dorsey
The Value of Tilth in Agriculture, pp. 193-194
L. S. Frierson
Bacteria in the American Permian, pp. 194-195
Roy L. Moodie


Quotations
Scientific Papers, pp. 195-196


Special Articles
On the Law of Surface Area in Energy Metabolism, pp. 196-200
John R. Murlin
On the Significnace of an Experimental Difference, with a Probability Table for Large Deviations, pp. 200-202
Percy W. Cobb
Polarization of Sound, pp. 202-203
Anders Bull


The American Chemical Society, pp. 203-204
Charles L. Parsons

Previous Issue: New Series, Vol. 54, No. 1391, Aug. 26, 1921
Next Issue: New Series, Vol. 54, No. 1393, Sep. 9, 1921



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Science, New Series, Vol. 54, No. 1393, Sep. 9, 1921


Previous Issue: New Series, Vol. 54, No. 1392, Sep. 2, 1921
Next Issue: New Series, Vol. 54, No. 1394, Sep. 16, 1921


Front Matter (1 p.)
The Nature of Man, pp. 205-213
Cassius J. Keyser

Mendelian Or Non-Mendelian?, pp. 213-216
George H. Shull


Scientific Events
Memorial to James Orton, pp. 216-217
Vaccination for Smallpox in England, p. 217
The Work of the Royal Observatory at the Cape of Good Hope, pp. 217-218
The International Commission on Illumination, p. 218
Chemistry and Civilization, pp. 218-219


Scientific Notes and News, pp. 219-220
University and Educational News, pp. 220-221


Discussion and Correspondence
The Chert Pits at Coxsackie, N. Y., p. 221
Everett R. Burmaster
The Use of Agar in Facilitating the Removal of a Swallowed Foreign Object, pp. 221-222
LeRoy S. Weatherby
An Inconsistency in Taxonomy, pp. 222-223
Edwin C. Starks
An Improved Method of Estimating the Number of Genetic Factors Concerned in Cases of Blending Inheritance, p. 223
W. E. Castle
The Curve of Distribution, p. 223
Carl H. P. Thurston


Quotations
Dyes for Bacteriology, p. 224


Special Articles
The Second-Year Record of Birds Which Did and Which Did Not Lay during Individual Months of the Pullet Year, pp. 224-226
J. Arthur Harris; Harry R. Lewis


The American Chemical Society, pp. 226-229
Charles L. Parsons

The Royal Society of Canada, pp. 229-230

Previous Issue: New Series, Vol. 54, No. 1392, Sep. 2, 1921
Next Issue: New Series, Vol. 54, No. 1394, Sep. 16, 1921



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Science, New Series, Vol. 54, No. 1394, Sep. 16, 1921


Previous Issue: New Series, Vol. 54, No. 1393, Sep. 9, 1921
Next Issue: New Series, Vol. 54, No. 1395, Sep. 23, 1921


Front Matter (1 p.)
Address of the President of the British Association for the Advancement of Science, pp. 231-239
T. Edward Thorpe

Life in Other Worlds, pp. 239-241
W. D. Matthew

George Trumbull Ladd, p. 242
C. E. Seashore


Scientific Events
The British Imperial Bureau of Mycology, pp. 242-243
Ceramic Investigations by the United States Bureau of Mines, p. 243
The Biology Club of the Ohio State University, pp. 243-244
Dr. Carl L. Alsberg and the Bureau of Chemistry, p. 244


Scientific Notes and News, pp. 244-247
University and Educational News, pp. 247-248


Discussion and Correspondence
Secular Perturbations of the Inner Planets, p. 248
Harold Jeffreys
Sporozoan Infection, p. 249
Frank G. Haughwout
Scientific Literature and Apparatus for Roumania, pp. 249-250
E. G. Racovitza
American Scientific Literature for Foreign Countries, p. 250
H. D. Barker
The Truth about Vivisection, pp. 250-251
W. W. Keen


Quotations
Chemistry and the Public, pp. 251-252


Special Articles
Triploid Intersexes in Drosophila Melanogaster, pp. 252-254
Calvin B. Bridges


The American Chemical Society, pp. 254-256
Charles L. Parsons

Previous Issue: New Series, Vol. 54, No. 1393, Sep. 9, 1921
Next Issue: New Series, Vol. 54, No. 1395, Sep. 23, 1921



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Science, New Series, Vol. 54, No. 1395, Sep. 23, 1921


Previous Issue: New Series, Vol. 54, No. 1394, Sep. 16, 1921
Next Issue: New Series, Vol. 54, No. 1396, Sep. 30, 1921


Front Matter (1 p.)
Address of the President of the British Association for the Advancement of Science, pp. 257-266
T. Edward Thorpe

Aerial Observation of Earthquake Rifts, pp. 266-268
Bailey Willis


Scientific Events
International Exploration of the Upper Air, p. 268
The World's Supply of Wheat, pp. 268-269
An English View of American Biology, pp. 269-270
The Retirement of Dr. W. H. Jordan, pp. 270-271


Scientific Notes and News, pp. 271-273
University and Educational News, pp. 273-274


Discussion and Correspondence
Discovery of Sauropod Dinosaur Remains in the Upper Cretaceous of New Mexico, p. 274
Charles W. Gilmore
Leaf Stripe Disease of Sugar Cane in the Philippines, pp. 274-275
H. Atherton Lee; Mariano G. Medalla
English Pronunciation for the Metric System, p. 275
Thaddeus L. Bolton
Gregor Mendel and the Support of Scientific Work at Brünn, pp. 275-276
E. B. Babcock


Notes on Meteorology and Climatology, pp. 276-277
C. LeRoy Meisinger


Special Articles
On the Elimination of the X-Chromosome from the Egg of Drosophila Melanogaster by X-Rays, pp. 277-279
James W. Mavor
Epidemic Pneumonia in Reptiles, pp. 279-281
G. A. MacCallum


The Ohio Academy of Science, pp. 281-282
Edward L. Rice

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Science, New Series, Vol. 54, No. 1396, Sep. 30, 1921


Previous Issue: New Series, Vol. 54, No. 1395, Sep. 23, 1921
Next Issue: New Series, Vol. 54, No. 1397, Oct. 7, 1921


Front Matter (1 p.)


The British Association for the Advancement of Science
Problems of Physics, pp. 283-291
O. W. Richardson


Scientific Abstracting, pp. 291-295
Gordon S. Fulcher


Scientific Events
The National Committee on Mathematical Requirements, pp. 295-296
Henry Woodward, p. 296
J. M. C.
Professor Pawlow, pp. 296-297


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


Discussion and Correspondence
A New Definition of Pure Mathematics, pp. 300-301
G. A. Miller
Gall Evolution: A New Interpretation, p. 301
B. W. Wells
On Sounds Accompanying Auroral Displays, pp. 301-302
Heber D. Curtis
Lawrence's Warbler, p. 302
Jas. Lewis Howe


Quotations
Chemistry in War, pp. 302-303


Scientific Books
Bibliography of Relativity, pp. 303-304
Review author[s]: Frederick E. Brasch


Special Articles
Einstein's Cosmological Equations, pp. 304-305
Edward Kasner
The Production of Enhanced Line Spectra by a New Method, pp. 305-306
R. A. Sawyer; A. L. Becker


The Iowa Academy of Science, pp. 306-310
James H. Lees

Previous Issue: New Series, Vol. 54, No. 1395, Sep. 23, 1921
Next Issue: New Series, Vol. 54, No. 1397, Oct. 7, 1921



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Science, New Series, Vol. 54, No. 1397, Oct. 7, 1921


Previous Issue: New Series, Vol. 54, No. 1396, Sep. 30, 1921
Next Issue: New Series, Vol. 54, No. 1398, Oct. 14, 1921


Front Matter (1 p.)
The Second International Congress of Eugenics Address of Welcome, pp. 311-313
Henry Fairfield Osborn

The Aims and Methods of Eugenical Societies, pp. 313-323
Leonard Darwin

Frederick Morton Chamberlain, pp. 323-324
G. Dallas Hanna


Scientific Events
Movement of the Population in the German Empire, p. 324
Accidents Due to Eye Defects, pp. 324-325
The Yale Forest School, pp. 325-326
The American Public Health Association, p. 326


Scientific Notes and News, pp. 326-329
University and Educational News, p. 329


Discussion and Correspondence
Grand Aurora of September 1-2, 1921 (at Silver Lake, N. H., Lat. 43.9 ° N.), pp. 329-330
Charles F. Brooks
The Coccidæ of Ceylon, p. 330
G. F. Ferris
A Method of Protecting Microscopic Sections from Mechanical Injury, pp. 330-331
J. A. Long


Quotations
The British Association, pp. 331-332


Scientific Books
Keen's Surgery, pp. 332-334
Review author[s]: Stuart McGuire


Special Articles
A New Graphic Analytic Method, pp. 334-336
R. Von Huhn


The American Philosophical Society, pp. 336-338

Previous Issue: New Series, Vol. 54, No. 1396, Sep. 30, 1921
Next Issue: New Series, Vol. 54, No. 1398, Oct. 14, 1921



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Science, New Series, Vol. 54, No. 1398, Oct. 14, 1921


Previous Issue: New Series, Vol. 54, No. 1397, Oct. 7, 1921
Next Issue: New Series, Vol. 54, No. 1399, Oct. 21, 1921


Front Matter (1 p.)
Magnetic Susceptibilities, pp. 339-348
S. R. Williams

Fundamental Principles Established by Recent Soil Investigations, pp. 348-351
Milton Whitney


Scientific Events
The Council Meeting of the American Chemical Society, p. 351
The Optical Society of America, pp. 351-352
The American Association for the Advancement of Science--Southwestern Division, p. 352
Elliott C. Prentiss
The Toronto Meeting of the American Association for the Advancement of Science, pp. 352-353


Scientific Notes and News, pp. 353-355
University and Educational News, pp. 355-356


Discussion and Correspondence
The Causes of Whiteness in Hair and Feathers, p. 356
R. M. Strong
Sidewalk Mirages, p. 357
Allan F. Odell
Discovery of a Prehistoric Engraving Representing a Mastodon, pp. 357-358
Jay L. B. Taylor
Some Suggestions for Photographing Fossils, p. 358
Maurice G. Mehl


Scientific Books
----------------, pp. 358-359
Vitamines: Essential Food Factors
Benjamin Harrow
Review author[s]: Percy G. Stiles


Experiments on the Recording and Reproduction of Cardiac and Respiratory Sounds, p. 359
Franklin L. Hunt; Magnus J. Myres


Special Articles
The Separation of the Elements Chlorine and Mercury into Isotopes, pp. 359-360
William D. Harkins
An Artificial Nerve, pp. 360-361
Reynold A. Spaeth


The American Philosophical Society, p. 362

Previous Issue: New Series, Vol. 54, No. 1397, Oct. 7, 1921
Next Issue: New Series, Vol. 54, No. 1399, Oct. 21, 1921



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Science, New Series, Vol. 54, No. 1399, Oct. 21, 1921


Previous Issue: New Series, Vol. 54, No. 1398, Oct. 14, 1921
Next Issue: New Series, Vol. 54, No. 1400, Oct. 28, 1921


Front Matter (1 p.)
The Direction of the Evolution of Science and the Place of Sigma XI in Such Evolution, pp. 363-367
Ross Aiken Gortner

The Relation of Chemical Training to Industry, pp. 367-371
Walter H. Coolidge

Anthropology in the Medical Curriculum, pp. 371-373
R. Bennett Bean


Scientific Events
The Film Photophone, p. 373
Radium for England, pp. 373-374
Biology in South China, pp. 374-375
Committee of the U. S. Department of Agriculture on Land Utilization, p. 375
The Director of the Mellon Institute, pp. 375-376


Scientific Notes and News, pp. 376-377
University and Educational News, p. 377


Discussion and Correspondence
An Ideal Host, pp. 377-378
Reynold A. Spaeth
A Remedy for Mange in White Rats, p. 378
Arthur H. Smith


Quotations
The Technicians in Industry, pp. 378-379


Scientific Books
----------------, pp. 379-381
History and Bibliography of Anatomic Illustration in Its Relation to Anatomic Science and the Graphic Arts
Ludwig Choulant
Review author[s]: F. T. Lewis
----------------, pp. 381-382
Observations on Living Gastropods of New England
Edward S. Morse
Review author[s]: Paul Bartsch


Venomous Spiders, pp. 382-385
Albert M. Reese


Special Articles
Prevalence and Distribution of Fungi Internal of Seed Corn, pp. 385-387
T. F. Manns; J. F. Adams


General Meeting of the American Chemical Society, pp. 387-388
Charles L. Parsons

The American Philosophical Society, pp. 389-390

Previous Issue: New Series, Vol. 54, No. 1398, Oct. 14, 1921
Next Issue: New Series, Vol. 54, No. 1400, Oct. 28, 1921



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Science, New Series, Vol. 54, No. 1400, Oct. 28, 1921


Previous Issue: New Series, Vol. 54, No. 1399, Oct. 21, 1921
Next Issue: New Series, Vol. 54, No. 1401, Nov. 4, 1921


Front Matter (1 p.)
Research in Eugenics, pp. 391-397
Charles B. Davenport

Joel Asaph Allen, pp. 397-402
H. E. Anthony


Scientific Events
The Danish Deep-Sea Expedition, p. 402
The Fifth Avenue Hospital of New York, pp. 402-403
The Employment of Mental Defectives in England, pp. 403-404
Bureau of Special Education in Ohio, p. 404
A Forest Experimental Station at Asheville, North Carolina, pp. 404-405
The Installation of President Farrand at Cornell University, p. 405


Scientific Notes and News, pp. 405-407
University and Educational News, pp. 407-408


Discussion and Correspondence
A Bird's-Eye View of American Languages North of Mexico, p. 408
E. Sapir
The Use of Vitamine Food-Tablets as an Aid toward Conserving the Food Supply, p. 409
J. F. McClendon


Scientific Books
----------------, pp. 409-411
The Anatomy of the Nervous System from the Standpoint of Development and Function
Stephen Walter Ranson
Review author[s]: C. Judson Herrick


Special Articles
A Simple Apparatus for Micro-Manipulation under the Highest Magnifications of the Microscope, pp. 411-413
Robert Chambers
Chromosome Relationships in Wheat, pp. 413-415
Karl Sax


Astronomical Meeting at the Potsdam Astronomical Observatory, pp. 415-416
American Mathematical Society, p. 416
R. G. D. Richardson

Previous Issue: New Series, Vol. 54, No. 1399, Oct. 21, 1921
Next Issue: New Series, Vol. 54, No. 1401, Nov. 4, 1921



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Science, New Series, Vol. 54, No. 1401, Nov. 4, 1921


Previous Issue: New Series, Vol. 54, No. 1400, Oct. 28, 1921
Next Issue: New Series, Vol. 54, No. 1402, Nov. 11, 1921


Front Matter (1 p.)
The Engineer; Human and Superior Direction of Power, pp. 417-424
L. H. Baekeland

Herbert Haviland Field, pp. 424-428
Henry B. Ward


Scientific Events
Winthrop Ellsworth Stone, pp. 428-429
Mortality Statistics for 1920, p. 429
The Mount Everest Expedition, pp. 429-430
The Laboratory of the Miami Aquarium Association, pp. 430-431
G. H. Parker
The Toronto Meeting of the American Society of Zoologists, p. 431
Charles A. Kofoid


Scientific Notes and News, pp. 431-435
University and Educational News, p. 435


Discussion and Correspondence
Aerial Observation of Physiographic Features, pp. 435-436
Douglas Johnson
Scientific Literature in European Countries, pp. 436-437
T. D. A. Cockerell


Scientific Books
----------------, pp. 437-438
Sturtevant's Notes on Edible Plants
U. P. Hedrick
Review author[s]: J. C. Arthur


Special Articles
The Displacement Method for Obtaining the Soil Solution, pp. 438-439
F. W. Parker


The American Astronomical Society, pp. 440-441
Joel Stebbins

New York Meeting of the American Chemical Society, pp. 441-446
Charles L. Parsons

Previous Issue: New Series, Vol. 54, No. 1400, Oct. 28, 1921
Next Issue: New Series, Vol. 54, No. 1402, Nov. 11, 1921



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Previous Issue: New Series, Vol. 54, No. 1401, Nov. 4, 1921
Next Issue: New Series, Vol. 54, No. 1403, Nov. 18, 1921


Front Matter (1 p.)
The Message of Science, pp. 447-456
Richard Gregory

A Notable Mathematical Gift, p. 456
G. A. Miller

A New Alaska Base Map, pp. 456-457


Scientific Events
Investigations of the U. S. Bureau of Mines on Ozone and Ventilation, pp. 457-458
The Pueblo Bonito Expedition of the National Geographic Society, p. 458
The Steele Chemical Laboratory of Dartmouth College, pp. 458-459
Lectures on Public Hygiene at the University of Pennsylvania, pp. 459-460
The Lane Medical Lectures of Stanford University, p. 460
The Toronto Meeting of the American Society of Naturalists, pp. 460-461
A. Franklin Shull


Scientific Notes and News, pp. 461-463
University and Educational News, p. 463


Discussion and Correspondence
An Explanation of Liesegang's Rings, pp. 463-464
S. C. Bradford
Specialization in the Teaching of Science, pp. 464-465
Freeman F. Burr
Shark and Remora, p. 465
H. W. Norris


Scientific Books
----------------, pp. 465-467
Life of Alfred Newton, Professor of Comparative Anatomy, Cambridge University, 1886-1907
A. F. R. Wollaston
Review author[s]: T. D. A. Cockerell


Acoustical Notes, pp. 467-469
Charles K. Wead


Special Articles
The Relation of Soil Fertility to Vitamine Content of Grain, pp. 469-470
J. F. McClendon; A. C. Henry
Mold Hyphæ in Sugar and Soil Compared with Root Hairs, pp. 470-471
Margaret B. Church; Charles Thom


The American Chemical Society, pp. 471-474
Charles L. Parsons

Previous Issue: New Series, Vol. 54, No. 1401, Nov. 4, 1921
Next Issue: New Series, Vol. 54, No. 1403, Nov. 18, 1921



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Science, New Series, Vol. 54, No. 1403, Nov. 18, 1921


Previous Issue: New Series, Vol. 54, No. 1402, Nov. 11, 1921
Next Issue: New Series, Vol. 54, No. 1404, Nov. 25, 1921


Front Matter (1 p.)
What is the Matter with Physics Teaching?, pp. 475-479
Wm. S. Franklin

Requirements of a Monograph on the Chemistry of Cellulose, pp. 479-482
Louis E. Wise

Eugenics--The American and Norwegian Programs, pp. 482-484
Henry Fairfield Osborn

Samuel Stockton Voorhees, pp. 484-485
W. F. Hillebrand


Scientific Events
Synthetic Organic Chemical Manufacturers' Association of the United States, pp. 485-486
The Editorship of the ``Journal of Industrial and Engineering Chemistry'', p. 486
Director of the Harvard College Observatory, pp. 486-487
A Southern Forest Experiment Station, p. 487
Organization for Research at the Pennsylvania State College, pp. 487-488
Sigma Xi Lectures at Yale University, p. 488


Scientific Notes and News, pp. 488-490
University and Educational News, p. 490


Discussion and Correspondence
Latitude and Vertebræ, pp. 490-491
David Starr Jordan
Abstracts and Titles of Scientific Articles from the Librarian's Standpoint, pp. 491-492
Eunice R. Oberly
Longitudinal Electromagnetic Forces, pp. 492-493
Carl Hering
The Scientific Bureaus of the Government, p. 493
Charles D. Walcott


Quotations
Meeting of the American Association in Canada, pp. 493-494


Scientific Books
----------------, pp. 494-497
Text-Book of Geology
Amadeus W. Grabau
Review author[s]: H. L. Fairchild


Special Articles
A Precision Determination of the Dimensions of the Unit Crystal of Rock Salt, pp. 497-498
Wheeler P. Davey


The American Electrochemical Society, pp. 498-501
A. D. Spillman

The Optical Society of America, pp. 501-502
Irwin G. Priest

Previous Issue: New Series, Vol. 54, No. 1402, Nov. 11, 1921
Next Issue: New Series, Vol. 54, No. 1404, Nov. 25, 1921



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Science, New Series, Vol. 54, No. 1404, Nov. 25, 1921


Previous Issue: New Series, Vol. 54, No. 1403, Nov. 18, 1921
Next Issue: New Series, Vol. 54, No. 1405, Dec. 2, 1921


Front Matter (1 p.)
Education in Relation to Public Health and Medical Practise, pp. 503-508
S. J. Holmes

The Relation of the Technical School to Industrial Research, pp. 508-510
Alfred D. Flinn

The Present Status of University Men in Russia, pp. 510-511
Vernon Kellogg


Scientific Events
Grants for Research of the American Association for the Advancement of Science, p. 511
Joel Stebbins
Map of the North Pacific Ocean, pp. 511-512
The Steamer ``Albatross'', p. 512
Mulford Exploration in Bolivia, pp. 512-513
The Eclipse Expeditions to Christmas Island, pp. 513-514


Scientific Notes and News, pp. 514-515
University and Educational News, p. 516


Discussion and Correspondence
Positive Ray Analysis of Zinc, p. 516
A. J. Dempster
The Rediscovery and Validity of Arca Lithodomus Sowerby, pp. 516-517
Carlotta J. Maury
The Geographical Distribution of Hybrids, p. 517
E. C. Jeffrey
The Ray Society, pp. 517-518
G. H. Parker


Scientific Books
----------------, pp. 518-520
The Analysis of Mind
Bertrand Russell
Review author[s]: Cassius J. Keyser


Testimonial to Dean H. L. Russell, pp. 520-521


Special Articles
The Quantitative Basis of the Polar Character of Regeneration in Bryophyllum, pp. 521-522
Jacques Loeb
The Scattering of Electrons by Nickel, pp. 522-524
C. Davisson; C. H. Kunsman
The Atomic Weight of Boron, pp. 524-525
G. P. Baxter; A. F. Scott


The American Chemical Society, pp. 525-528
Charles L. Parsons

Previous Issue: New Series, Vol. 54, No. 1403, Nov. 18, 1921
Next Issue: New Series, Vol. 54, No. 1405, Dec. 2, 1921



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Science, New Series, Vol. 54, No. 1405, Dec. 2, 1921


Previous Issue: New Series, Vol. 54, No. 1404, Nov. 25, 1921
Next Issue: New Series, Vol. 54, No. 1406, Dec. 9, 1921


Front Matter (1 p.)
Some Problems in Evolution, pp. 529-538
Edwin S. Goodrich

The Spirit of Research, pp. 538-539
S. R. Williams

The Concentration of Hydrogen Ions in the Soil, pp. 539-541
Carsten Olsen

The Present Status of the Concilium Bibliographicum, p. 541
Vernon Kellogg


Scientific Events
The High Altitude Expedition to Peru, p. 542
The Joseph Henry Fund of the National Academy of Sciences, pp. 542-543
W. F. Durand
Dr. Nichols and the Presidency of the Massachusetts Institute of Technology, pp. 543-544
Meetings of National Scientific Societies, pp. 544-545


Scientific Notes and News, pp. 545-547


Discussion and Correspondence
Fur Seals off the Farallons, pp. 547-548
Barton Warren Evermann
The Physical Museum of the University of Wisconsin, pp. 548-549
L. R. Ingersoll
How to Do Research, pp. 549-550
A. W. Simon


Scientific Books
----------------, pp. 550-552
Organic Dependence and Disease: Their Origin and Significance
John M. Clarke
Review author[s]: Charles Schuchert


Special Articles
A Simple Micro-Injection Apparatus Made of Steel, pp. 552-553
Robert Chambers
On the Emission and Absorption of Oxygen and Air in the Extreme Ultra-Violet, pp. 553-554
J. J. Hopfield


The American Chemical Society, pp. 555-558
Charles L. Parsons

Previous Issue: New Series, Vol. 54, No. 1404, Nov. 25, 1921
Next Issue: New Series, Vol. 54, No. 1406, Dec. 9, 1921



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Science, New Series, Vol. 54, No. 1406, Dec. 9, 1921


Previous Issue: New Series, Vol. 54, No. 1405, Dec. 2, 1921
Next Issue: New Series, Vol. 54, No. 1407, Dec. 16, 1921


Front Matter (1 p.)
The Present Situation in Forestry, with Special Reference to State Forestry, pp. 559-566
J. W. Toumey

Occurrence of Pleistocene Vertebrates in an Asphalt Deposit near McKittrick, California, pp. 566-567
John C. Merriam; Chester Stock

Special Oil-Immersion Objectives for Dark-Field Microscopy, pp. 567-569
Simon H. Gage

The International Geological Congress Committee, pp. 569-570


Scientific Events
Molding Sand Research, pp. 570-571
Alfred D. Flinn
The Bayard Dominick Marquesan Expedition, pp. 571-572
H. E. G.
Lectures by Professor Lorentz at the California Institute of Technology, p. 572
The Secretaryship of Sigma Xi, pp. 572-573


Scientific Notes and News, pp. 573-575
University and Educational News, p. 575


Discussion and Correspondence
An English Translation of Helmholtz's ``Optik'', pp. 575-576
James P. C. Southall
The American Society of Naturalists, p. 576
Henry Fairfield Osborn
The Program of the Section of Botany for the Toronto Meeting, pp. 576-577
Robert B. Wylie
The Twentieth International Congress of Americanists, p. 577
Aleš Hrdlička
Fossil Man from Rhodesia, p. 577
George Grant MacCurdy


Scientific Books
----------------, pp. 577-578
Physiology and Biochemistry in Modern Medicine
J. J. R. Macleod
Review author[s]: J. C. Aub
----------------, p. 578
Triassic Fishes from Spitzbergen
Erik A:Son Stensiö
Review author[s]: Roy L. Moodie


Special Articles
Inhibitory Effect of Dermal Secretion of the Sea-Urchin upon the Fertilizability of the Egg, pp. 578-580
Hiroshi Ohshima
Simple Method of Bleeding Rabbits, pp. 580-581
George F. Forster
Adsorption by Soil Colloids, pp. 581-582
Neil E. Gordon; R. C. Wiley; E. B. Starky; A. L. Flenner; D. C. Lichtenwalner


The American Chemical Society, pp. 582-584
Charles L. Parsons

American Mathematical Society, p. 584
R. G. D. Richardson

Previous Issue: New Series, Vol. 54, No. 1405, Dec. 2, 1921
Next Issue: New Series, Vol. 54, No. 1407, Dec. 16, 1921



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Science, New Series, Vol. 54, No. 1407, Dec. 16, 1921


Previous Issue: New Series, Vol. 54, No. 1406, Dec. 9, 1921
Next Issue: New Series, Vol. 54, No. 1408, Dec. 23, 1921


Front Matter (1 p.)
The Present Status of the History of Science in American Colleges and Universities, pp. 585-595
E. H. Johnson

The Expedition to Trinidad for the Study of Hookworm Disease, pp. 595-597
William W. Cort


The American Association for the Advancement of Science
The Toronto Meeting, pp. 597-599
Burton E. Livingston


Scientific Events
Forest Experiment Stations, p. 599
The U. S. Patent Office, pp. 599-600
Scientific Journals Published by the Government, p. 600
The American Society of Zoologists, pp. 600-601
W. C. Allee


Scientific Notes and News, pp. 601-603
University and Educational News, p. 603


Discussion and Correspondence
In Assistance of the Archives De Biologie, pp. 603-604
Robert A. Budington
The Vibrations of a Tuning Fork, pp. 604-605
Paul Thomas Young
An Anecdote Concerning Dr. Field, p. 605
S.
Two Retrospective Features of the Toronto Meeting, pp. 605-606
A. F. Hunter


Scientific Books
----------------, p. 606
The Life of the Pleistocene or Glacial Period
Frank Collins Baker
Review author[s]: Wm. H. Dall


Special Articles
The Egg-Laying Habits of Megarhyssa (Thalessa), pp. 607-608
Werner Marchand
A Condensation Pump, pp. 608-609
E. H. Kurth


The American Chemical Society, pp. 609-612
Charles L. Parsons

Previous Issue: New Series, Vol. 54, No. 1406, Dec. 9, 1921
Next Issue: New Series, Vol. 54, No. 1408, Dec. 23, 1921



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Science, New Series, Vol. 54, No. 1408, Dec. 23, 1921


Previous Issue: New Series, Vol. 54, No. 1407, Dec. 16, 1921
Next Issue: New Series, Vol. 54, No. 1409, Dec. 30, 1921


Front Matter (1 p.)
The Outlook for Agricultural Research, pp. 613-617
R. W. Thatcher

Zoological Research as a Career, pp. 617-619
C. E. McClung

Geology as a Profession, pp. 619-622
H. P. Little


The American Association for the Advancement of Science
Report of the Autumn Meeting of the Executive Committee of the Council, pp. 623-624
Burton E. Livingston


Educational Events
An American Bamboo Grove Open to Investigators, p. 624
David Fairchild
Flights of House Flies, pp. 624-625
Impact on Bridges, p. 625
The Toronto Meeting, pp. 625-626


Scientific Notes and News, pp. 626-628
University and Educational News, p. 628


Discussion and Correspondence
The National Academy of Sciences and the Metric System, pp. 628-629
Charles D. Walcott
Stains for the Mycelium of Molds and Other Fungi, pp. 629-630
M. E. Diemer; Eloise Gerry
Sharks at San Diego, p. 630
H. W. Norris
Municipal Observatories, pp. 630-631
Nevin M. Fenneman


Scientific Books
The Order of Nature, pp. 631-634
The Principles of Natural Knowledge
A. N. Whitehead
L'Unité de la Science
Leclerc du Sablon
The Order of Nature
Lawrence J. Henderson
The System of Animate Nature
J. A. Thomson
Review author[s]: R. D. Carmichael


Special Articles
More Linked Genes in Rabbits, pp. 634-636
W. E. Castle
The Hydrogen-Ion Concentration of Cultures of Connective Tissue from Chick Embryos, pp. 636-637
M. R. Lewis; Lloyd D. Felton
An Electrical Effect of the Aurora, pp. 637-638
Fernando Sanford


The American Chemical Society, pp. 638-640
Charles L. Parsons

Previous Issue: New Series, Vol. 54, No. 1407, Dec. 16, 1921
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Science, New Series, Vol. 54, No. 1409, Dec. 30, 1921


Previous Issue: New Series, Vol. 54, No. 1408, Dec. 23, 1921
Next Issue: New Series, Vol. 55, No. 1410, Jan. 6, 1922


Front Matter (1 p.)


The American Association for the Advancement of Science
(a) On Some Presidential Addresses: (b) The War against the Insects, pp. 641-651
L. O. Howard


Address at the Laying of the Corner Stone of the Chemical Laboratory of the Cornell University, pp. 651-653
Edward L. Nichols

The Origin of Soil Colloids and the Reason for the Existence of this State of Matters, pp. 653-656
Milton Whitney

When Will the Teaching of Chemistry Become a Science?, pp. 656-658
Neil E. Gordon


Scientific Events
Earl Jerome Grimes, p. 658
Electric Power Maps, p. 658
Medals of the Royal Society, pp. 658-659


Scientific Notes and News, pp. 659-661
Educational Notes and News, pp. 661-662


Discussion and Correspondence
The Acquisitive Instinct in Children as an Educational Stimulus, pp. 662-663
William Drumm Johnston
Linkage in Poultry, p. 663
J. B. S. Haldane
The Zoological Record, p. 663
W. L. Sclater
Meteorologische Zeitschrift, pp. 663-664
Otto Klotz


Scientific Books
Recent Advances in Paleopathology, p. 664
Review author[s]: Roy L. Moodie


Special Articles
A Simple Method of Obtaining Premature Eggs from Birds, pp. 664-666
Oscar Riddle
The Discovery of Olenellus Fauna in Southeastern British Columbia, pp. 666-667
Stuart J. Schofield
Howardula Benigna; A Nema Parasite of the Cucumber-Beetle, pp. 667-670
N. A. Cobb

Previous Issue: New Series, Vol. 54, No. 1408, Dec. 23, 1921
Next Issue: New Series, Vol. 55, No. 1410, Jan. 6, 1922



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