ABBOT, C. G., Pyrheliometry, 609
Acidosis, Catalase in, W. E. BURGE, 347
ADAMS, F. D., Chemical Analyses of Igneous Rocks,
H. S. Washington, 368

ADAMS, J., Recording Temperature, 539

ADAMS, R., Manufacture of Organic Chemicals, 225

Aeronautics, 37

Age and Area Hypothesis, E. F. ANDREWS, 142; J.

C. WILLIS, 626

Agricultural, Education and Research, W. H. JOR-
DAN, 125; Instruction, H. NESS, 240

Agriculture, French, 232

Alaska Fishery and Fur Products, 557

ALLEN, E. W., Amer. Assoc. Adv. Sci., Section M-

Agriculture, 444

ALWAY, F. J., "Rawness" of Subsoils, 196

American Association for the Advancement of Sci-

ence, Address of the President, 1, 27; Pitts-

burgh Meeting, 48; Addresses of the Vice-presi-

dents, Section B, 51; Section D, 75; Section G,

101; Section M, 125; Section F, 151; Section I,

201; Section E, 325; Report of the Treasurer,

199; of the Permanent Secretary, 200; the Com-

mittee on Policy, L. O. HowARD, 443; Botany,

A. F. BLAKESLEE, 99; Zoology, H. V. NEAL, 247;

Agriculture, E. W. ALLEN, 444; Geology and

Geography, R. T. CHAMBERLIN, 467, 492; Balti-

more Meeting, 482; Engineering, A. H. BLANCH-

ARD, 543; Physics, G. W. STEWART, 569

Anatomy, Comparative, Scott on, E. C. JEFFREY,
343; Canons of, W. P. THOMPSON, 517; of
Woody Plants, H. S. CONARD, E. C. JEFFREY, 316

ANDREWS, E. F., Age and Area Hypothesis, 142

Animal Census of Two City Lots, G. N. WOLCOTT,
371

Antarctic Ice Cap, K. F. MATHER, 218

Anti-Vivisectionists and the Red Cross, W. W.

KEEN, 175

Antiquity of Man, W. H. HOLMES, 561

Arber, E. A., Mesozoic Floras, E. W. BERRY, 518
ARONOVITCH, B., and F. H. PIKE, Otic Labyrinth
and Attitude of the Head, 519
Artichoke, Jerusalem, L. O. Howard, 344
Astigmatism and Coma, C. W. WOODWORTH, 459
Astronomical Day, W. S. EICHELBERGER, 23
Atomic Weights, and X-Rays, C. W. KANOLT, 123;
G. L. WENDT, 442

Audibility, Areas of, W. J. FISHER, 417; of Sound,
461

Aurora, Borealis, C. W. TOMLINSON; C. M. SMITH,
291; J. STEBBINS, J. E. SMITH, G. H. BRETNALL,
314; and Magnetic Storm, 359; F. P. WHITMAN,
393

Auroral Convergent, L. D. BURLING, 460

BAUER, L. A., Observations on Solar Eclipse, 486
BEEBE, W., Costa Rican Natural History, A. S., and
P. P. Calvert, 222

BENEDICT, R. C., The Yellow Clothes Moth, 392
BENTON, J. R., Drawings on Lantern Slides, 489
Bergen, Joseph Young, E. H. HALL, 14, 144
BERRY, E. W., Mesozoic Floras, E. A. Arber, 518;
Plants, Seeds and Currents, H. B. Guppy, 612
BEVAN, A. D., Medical Profession and the War,
597

Botany in America, C. STUART GAGER, 101
Bread, Whole-Wheat, R. A. DUTCHER, 228
BRETNALL, G. H., Aurora of March 7, 1918, 315
British, Museum and the War, 165; Government,
Reconstruction Commissions of, 338; Civil Serv-
ice Estimates for Science and Education, 454

BROOKS, C. F., Meteorology and Climatology, 565

Brown, Amos Peaslee, 37

BRYAN, M. K., Marking Microscope Slides, 171

BUCHANAN, R. E., Evolution of Bacteria, 320

BUMSTEAD, H. A., Theoretical Physics, 51

BURGE, W. E., Catalase in Acidosis, 347

BURLING, L. D., Translations, 367; The Auroral

Convergent, 460; Lantern Slides, 639