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SCIENCE

NEW SERIES. VOLUME LI.

JANUARY-JUNE, 1920

NEW YORK
THE SCIENCE PRESS

1920

32799 Act. 7,1920

THE NEW ERA PRINTING COMPANY, 41 NORTH QUEEN STREET,

LANCASTER, PA.

NEW SERIES. VOL. L.-JANUARY TO JUNE, 1920

THE NAMES OF CONTRIBUTORS ARE PRINTED IN SMALL CAPITALS

Aerostatic Pressure and Gravity, A. McADIE, 144
Acceleration, Centripetal, and Weight, B. L. NEW-

KIRK, 321

Agriculture, N. Y. State College, 317, 431

ALEXANDER, J., Blue in Snow, 465

ALLEE, W. C., Amer. Soc. of Zoologists, 214

Allegheny Observatory, 458

ALLEN, W. E., Micro-plankton, 487

ALTER, D., Sunspots and Earthquakes, 486

American Association for the Advancement of Sci-

ence: A Ticket to St. Louis, SCHOOLMASTER, 16;

St. Louis Meeting, G. T. MoORE, 48; Grants, 83;
Dues and Salaries, 115; Financial Report, 194;
Minutes of the Executive Committee, B. E. LIV-
INGSTON, 470; Vice-presidential Address, Public
Health, C.-E. A. WINSLOW, 23; Advances in
Dynamics, G. D. BIRKHOFF, 51; Biologist, Mes-
sage of, W. PATTEN, 93; Anthropology and Psy-
chology, A. HRDLIČKA, 199; Physics in War and
Peace, G. F. HULL, 221; Sexuality in Mucors, A.
· F. BLAKESLEE, 375, 403; Section A-Mathe-
matics and Astronomy, F. R. MOULTON, 220;
Section B-Physics, G. W. STEWART, 352; Sec-
tion E-Geology and Geography, R. T. CHAM-
BERLIN, 491, 518; Section F-Zoology, H. V.
NEAL, 147; Section H-Anthropology and Psy-
chology, E. K. STRONG, 418, 441; Pacific Coast
Division, 457, 532; Southwestern Division, 509;
Research after the War, R. A. HARPER, 473

AMES, J. S., Einstein's Law, 253

Anesthetics, Local, H. G. BARBOUR, 497

Anglo-American Library, 480

Anopheles, F. E. CHIDESTER, 244

Anthropological Soc. of Washington, 39

Anthropology and Psychology, W. V. BINGHAM, 353

Ants and Scientists, A. MANN, 87

Aquarium, Steinhart, 136

Arctic Expedition, Canadian, 167

Aristotle and Galileo on Falling Bodies, F. CAJORI,

615

ARMSBY, H. P., Organization of Research, 33
ARTHUR, J. C., Rusts, 246

Ash Dune Plants, W. D. RICHARDSON, 546
Atmosphere, High Levels in, A. MCADIE, 287, 438;
J. G. COFFIN, 366

Atmospheric Moisture, C. F. BROOKS, 440

Auroras, C. F. BROOKS, 392; JOEL STEBBINS, 485;
E. D. ROE, JR., 486

Aviation, Psychology of, H. M. JOHNSON, 449

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BINGHAM, W. V., Anthropology and Psychology,
353

Biochemist in Hospitals, F. S. HAMMETT,
Biological Surveys, 40

131

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