CONTENTS AND INDEX. 



NEW SERIES. VOL. LIII.— JANUARY TO JUNE, 1921 



NAMES OF CONTRIBUTORS ARE PRINTED IN SMALL CAPITALS 



Aeid, Base Equilibrium of the Blood, W. B. Mc- 

 NiDEE, 141; Production Bacterium, S. A. Waks- 

 MAN, J. S. JorFE, 216 

 Acoustic Pressure and Dilation, C. Barus, 489 

 Aedes sollicitans, S. F. Hildebrand, 163 

 Age-computing Device, C. M. Kelley, 518 

 Agricultural, Science, A. F. Woods, 27; Journal, 



Canadian, 182 

 Agriculture, Eetiring Secretary of. Dinner in 



Honor of, 207 

 Agronomy, Amer. Soc. of, P. E. Brown, 344 

 Alaska Forests, Administration of, 86 

 Allee, W. C, Amer. Soc. of Zoologists, 97 

 Allen, R. F., Stem Eust in Kanred Wheat, 575 

 Allen, W. E., Expedition of Indiana University 



to Peru, 377 

 Amazon, Expedition to the Upper Basin of the, 



514 

 American Association for the Advancement of Sci- 

 ence: Chicago Meeting, 1; Eeport of the Treas- 

 urer, 167; Financial Report of the Permanent 

 Secretary, 169; Grants for Eesearch, 281; Ex- 

 ecutive Committee, B. E. Livingston, 475; Ee- 

 port of the Permanent Secretary, B. E. Living- 

 ston, 548; Vice-presidential Addresses: Agrieul- 

 tura.1 Science, A. F. Woods, 27; Organization 

 of Eesearch, W. M. Wheeler, 3 ; Psychology 

 and Medicine, R. M. Yerkes, 106; Anthro- 

 pology and our Nation, A. E. Jenks, 147; 

 'Structural Failure of the Lithosphere, C. K. 

 Leith, 196; Decade of American Mathematics, 

 0. D. Kellogg, 541; Section A and Mathe- 

 matical Organizations, W. H. Roever, A. 

 Dresden, W. D. Cairns, 342; Section E — 

 Geology and Geography, R. T. Chamberlin, 

 242; Section P — Zoology, H. V. Neal, 76; 

 Section L, G. A. Miller, 257; Section L — His- 

 tory of Science 'Sessions, F. E. Brasch, 315; 

 Scientific Apparatus and, 494; Pacific Division, 

 W. W. Sargeant, 464; Western Division, 48; 

 Organization Meeting at Pennsylvania State 

 College, 531; Museum of Natural History, 157, 

 158; Scientific Staff of the, 231 

 Amoeboid Movement, L. Loeb, 261 

 Antesthetics, Giving, J. R. Slonaker, 75 

 Anatomic Illustration, R. L. Moodie, 259 

 Anderson, E. V., R. A. Dutcher, C. H. Eckles, 



J. W. Wilbur, Cow 's Milk, 446 

 Angell, Dr., Election of, as President of Yale 



University, 184 

 Anthropological Publications of Canadian Arctic 



Expedition, 86 

 Anthropology, Value of, A. E. Jenks, 147 

 Anthropometric Measurements, H. H. Wilder, 20 

 Apparatus, Duty on Scientific, 494 

 Archeological Specimens, W. K. Moorehead, 213 



Arthur, J. C, Origin of Potato Rust, 228 

 Astronomical, Research, W. W. Campbell, 116; 



Observations, Printing of, 140; Soc. of Amer., 



J. Stebbins, 193 

 Atmospheric Pollutions, A. McAdie, 389 

 Aurora of May 14, 1921, F. Slooum, J. E. Smith, 



515 

 Auroras, Recent, E. Thomson, 534 



Baker, R. P., Musical Notation, 235 



Banta, a. M., Culture Medium for Daphnids, 557; 



Eyeless Daphnid, 462 

 Barnett, S. J., Electron Theory of Magnetism, 



465 

 Barrows, A. L., Meeting of Committees on Con- 

 servation, 521 

 Barton, S. G., Impossible (?) Stories, 364 

 Bakus, C, Adjustable Embouchure, 47; Acoustic 



Pressure and Acoustic Dilation, 489 

 Bedell on The Airplane, L. S. Marks, 119 

 Bergman, H. F., Carbon Dioxide from Straw- 

 berries, 23 

 Bennett on Soils and Agriculture, W. B. Cobb, 



517 

 Bibliography, Question of, R. M. Macdonald, 74 

 Biological, Science, Natural Areas and, B. Moore, 



73; Field Station of Cornell University, 159; 



Survey of Washington, 252; Stains, H. J. 



Conn, 289; Publications, Requests for, C. A. 



KoFOiD, 335; Station at Fairport, Iowa, R. E. 



COKER, 447 

 Birds, Sound Location of, A. G. Pohlman, 439 

 BiRGE, R. T., Relativity Shift of Spectrum Lines, 



368 

 BissELL, M. H., "Denudation," "Erosion," 



"Corrosion" and "Corrasion," 412 

 BoDiNE, J. H., Stock Cultures of a Protozoon, 92 

 Botanical Soc. of Amer., Committee on Nomen- 

 clature, A. S. Hitchcock, 312 

 Botany, Some Economic Phases of, L. H. Pam- 



mel, 4 

 Bottle drift, J. W. Mayor, 187, 389 

 Bowdoin Medical School, 15 

 Bowman, H. H. M., Youngken's Pharmaceutical 



Botany, 189 

 Brasch, F. E., History of Science Sessions, 315 

 Bridges, C. B., Fourth Chromosome of Droso- 



phUa Melanogaster, 308 

 Brigham, W. T., Hawaiian Olona, 21 

 British, Association, 280; Edinburgh Meeting, 360; 



DyestufPs Corporation, 415 

 Britton, N. L., Flora of Northern S. Amer., 29 

 Brown, P. E., Amer. Soc. of Agronomy, 344 

 Bryozoa as Food for Other Animals, E. C. Os- 



BURN, 451 

 Bull, A., High Frequency OscUlatious, 43 

 Bumstead, Henry Andrews, Eesolutions on Death 



of, 70; E. A. MiLLiKAN, 84 



