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MEYER, A. W., A Suggestion from Plato, 530 PEIRCE, G. J., Kinds of Botany the World Needs, 81

Microscope, Ocular of the, C. L. METCALF, 310 PERKINS, G. H., Physiography of Vermont, 77

MILLER, A. M., Cumberland Falls Meteorite, 541 PERRY, F. M., Field Work in Arizona, 357
Miller, B. L., Mineral Deposits of S. America, A. PERSHING, J. J., Chemical Warfare Service, 512
KNOPF, 518

Personnel Work, Scientific, in Army, E. L. THORN-

MILLER, G. A., Professor Ludvig Sylow, 85; Com-

DIKE, 53

mon Numerals, 215; Revista Matematica, 608; Petroleum Geologists, 337
Historical Science, 447

PHILLIPS, H. B., Relativity of Motion, R. C. Tol-

MILLER, L. H., Mendelian Phenomena, 148

MILLER, W. J., Silexite, 149

Philosophical Soc., Amer., A. W. GOODSPEED, 545

MILLER, D. C., Amer. Physical Soc., 197

Photometer, Sector, and Extinction Coefficient, H.
Mineral Deposits in the U. S., 465

S. NEWCOMER, 241
Mining Engineers, Amer. Inst. of, 143

Physical, Amer., Soc., D. C. MILLER, 197; Improve-
MITCHELL, P. C., Desmognathus Fuscus, 283

ments in Army Men, F. M. HILDEBRANDT, 404
Monkeys to pick Coco Nuts, E. W. GUDGER, 146 Physics of the Air, W. J. HUMPHREYS, 155, 182
MOODIE, R. L., Renaissance Anatomy, 472

Physiography of Vermont, G. H. PERKINS, 77
MOORE, G. T., Botanical Participation in War Work, Physiology of a Working Day, 424
269

Phytopathological, Amer., Soc., C. L. SHEAR, 174

Moore, R. B., Radium Production, 564

Pickering, Edward Charles, H. N. RUSSELL, 151

MORGAN, J. L. R., Stoichiometry, S. Young, 46 Pigeon, Passenger, F. R. WELSH, 402

Morgan, Lewis Henry, Memorial to, 163

Pink Root of Onions, J. J. TAUBEN'HAUS, 217

Plato, A Suggestion from, A. W. MEYER, 530

National, Acad., Proceedings, E. B. Wilson, 46;

Polyembryony and Encyrtidæ, L, O. HOWARD, 43
of Sci., 286, 429, 444; Flower and Hay-fever, H.

Poor, C. L., Astronomy, C. A. Young, 614
GUNTHORP, 147; W. SCHEPPEGRELL, 284; Re-

Potato Diseases, M. F. BARRUS, 542
search Council, 374

PRICER, J. L., Ill. State Acad. of Sci., 451
Naturalists, Amer. Soc. of, B. M. Davis, 75; West-

Proboscideans of New York, O. P. HAY, 377
ern Soc. of, 149

Protein Antigens, C. BROOKS, 196
Nebraska Acad. of Sci., 500

Psychiatry and the War, W. H. R. Rivers, 367
NEEDHAM, J. C., Laboratory and Government Zool-

Psychological Assoc., Amer., H. S. LANGFELD, 51
ogists, 453

Psychology, Applied, E. B. TITCHENER, 169; Divis-
NELSON, E. W. Laboratory and Government Zool-

ion of, 512
ogists, 409

Pumpelly, R., Reminiscences, W. M. DAVIS, 61
NEUMANN, F., History of Sciences in U. S., 330

Putnam, Dr. James Jackson, H. P. Walcott, C. C.

NEWCOMER, H. S., The Extinction Coefficient, 241 JACKSON, E. W. EMERSON, E. H. BRADFORD, M.

Nitrate and the War, 66

STORY, 352

Nonsilverable Containers, W. W. COBLENTZ, 192;

Pyrex Glass, Cutting, C. T. KNIPP, 450
H. E. IVES, 330

Noyes, W. A., Valence, 175

Quicksilver in 1918, Production of, 116

Numerals, Common, G. A. MILLER, 215

QUIRKE, T. T., The Richardton Meteorite, 92

Nunn, R., Tennessee Acad. of Sci., 150

Quotations, 216, 239, 311, 358, 380, 402, 424, 448,

NUTTING, P. G., Optical Soc. of Amer., 52

497, 566, 591

Radioactive Lead, T. W. RICHARDS, 1

Radium Production, C. H. VIOL, 227; MOORE, R. B.,

564

RAINES, M. A., Rotary Vertigo in the Tail-Spin, 266

Ramsay Memorial Fund, 586

Research, Industrial, in Ontario and Prussia, A.

F. HUNTER, 208; in Great Britain, 239, 380, 497 ;
as a University Function, J. C. ARTHUR, 387;
Aeronautical, 448; Council, National, 458; Fel-

lowships, 462
Reservations, Wild Life, A. G. RUTHVEN, 17
RETTGER, L. F., Milk Hygiene, L. A. Klein, 25
Revista Matematica Hispano-Americana, G. A.

MILLER, 608

REYNOLDS, E. S., Root Pressure and Root Exuda-

tion, 70

RICHARDS, T. W., Radioactive Lead, 1
Ritter, W. E., Philosophical Biology, W. P. TAYLOR,

449
RIVERS, W. H. R., Psychiatry and the War, 367
ROBERTS, H. F., Color Crosses, 516
ROBERTSON, C., Generic Determinations of Bees, 422
Rockefeller Foundation, 87, 302
Roosevelt, Theodore, and American Foresters, 114;

Wild-life Forest Exp. Sta., C. C. ADAMS, 533

Root Pressure and Root Exudation, E. S. Rey-

NOLDS, 70
ROSEN, H. H., Disease of Foxtail, 291
RUPPENTHAL, J. C., A Standard Alphabet, 191
RUSSELL, B., Patent Reform, 356
RUSSELL, H, N., Variable Stars, 127; Edward

Charles Pickering, 151

RUTHVEN, A. G., Wild Life Reservations, 17

STRONG, E. K., JR., Anthropology and Psychology,

125

Sugar Cane, Immune, C. 0. TOWNSEND, 470; Tech-

nology in Hawaii, V. MacCAUGHEY, 582
Sulphonic Acids, D. F. HOUSTON, 265
Sylow, Professor Ludvig, G. A. MILLER, 85
Systematic Papers in German, G. F. HAMPSON, 193

TAUBENHAUS, J. J., Pink Root of Onions, 217
TAYLOR, W. P., Bats of California, H. W. Grinnell,

193; Philosophical Biology, W. E. Ritter, 449
Tennessee Academy of Science, R. NUNN, 150
THORNDIKE, E. L., Scientific Personnel Work in

Army, 53; and K. DUNLAP, Psychological Re-

search for Aviators, 215
TITCHENER, E. B., Applied Psychology, 169. John

Wallace Baird, 393
Tolman, R. C., Relativity of Motion, H. B.

PHILLIPS, 148
TOWNSEND, C. O., Immune Sugar Cane, 470
Tropical Enervation, V. MacCAUGHEY, 44
TROWBRIDGE, A., Sound and Flash Ranging, 521
TRUE, R. H., P. G. AGNEW, Union of Scientific Fed-

eral Employees, 487

TYNDALL, E. P. T., E. KARRER, Auroral Display of

May 2, 1919

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S., W., Game Birds of Calif., J. Grinnell, H. C.

Bryant, and T. I. Storer, 498
Sabine, Wallace Clement Ware, E. H. Hall, C. N.

GREENOUGH, P. W. BRIDGMAN, 347
Salt Requirements of Plants, 143
SARTON, G., Publication of Isis, 170
SCHACKE, M. A., Sphærocarpos Texanus, 218
SCHEPPEGRELL, W., Hay Fever, 284
SCHRAMM, J. R., Botanical Abstracts, 195
SCHUCHERT, C., Papers from the Department of

Marine Biology, 121; Joseph Barrell, 605

Science in the British Parliament, 358

Sciences, History of, in U. S., F. NEUMANN, 330

Scientific, Events, 15, 38, 65, 85, 114, 141, 163, 188,

209, 230, 259, 278, 302, 323, 350, 372, 394, 419,

443, 465, 489, 510, 535, 558, 584, 607; Notes and

News, 19, 40, 67, 88, 116, 144, 165, 189, 211, 232,

261, 281, 303, 326, 353, 375, 396, 421, 445, 467,

492, 513, 538, 561, 586, 610. Books, 25, 46, 93,

121, 148, 171, 193, 217, 265, 285, 312, 332, 359,

381, 403, 425, 449, 472, 498, 518, 543, 568, 592,

614; Organization and A. A. A. S., 112; Spirit,

M. M. METCALF, 551; Instruments, Early, 584

Seed Injury, H. BRAUN, 544

SEYMOUR, R. J., and E. P. DURRANT, Vitamin

Tests, 448

Shaw, Sir Napier, Wind and Barometric Pressure,

A. M., 285

SHEAR, C. L., Amer. Phytopathological Soc., 174
Sheffield Scientific School and Yale University, 18
SHIPLEY, J. W., Valley of Ten Thousand Smokes,

589

Silexite, W. J. MILLER, 149

Smell, Deficiencies in, C. R. STOCKARD, 237

SMITH, C. A., Utah Acad. of Sci., 475

Smith, E. F., Electroanalysis, C. G. FINK, 332

SMITH, H, I., Bison for Museums, 517

Smith Herbert Huntington, W. J. HOLLAND, 481

Smithsonian Institution, L. AGASSIZ, 300

Solar Eclipse of May 29, 1919, L. A. BAUER, 260

SOPER, G. A., Lessons of the Pandemic, 501

Sound and Flash Ranging, A. TROWBRIDGE, 521

Special Articles, 26, 48, 72, 94, 122, 148, 196, 217,

241, 266, 288, 313, 336, 360, 385, 404, 427, 450,

474, 499, 521, 544, 569, 594, 615

Spectrum Phenomena and Moving Motes, C.

BARUS, 72

Sphærocarpos Texanus, M. A. SCHACKE, 218

SPRAGG, F. A., Biological Literature in English, 23

Standards, Bureau of, 39

Stars, Variable, H. N. RUSSELL, 127

STEBBINS, J., Committee on Grants of Amer. Assoc.

for the Advancement of Sci., 211; Astronomical

Union, 508

Step, Keeping, W. M. COLEMAN, 380

STEVENS, 0. A., Generic Limitations, 71

STIEGLITZ, J., Chemistry and Medicine, 31

STOCKARD, C. R., Deficiencies in Smell, 237

Valence, W. A. NoYes, 175

Valley of Ten Thousand Smokes, J. W. SHIPLEY,

589

Van Hise, President, in Memory of, 114

Variable Star Observers, Amer. Assoc. of, L. C., 243

Vegetables, Desiccated, P. B. HAWK, 329

Vertigo, Rotary, in the Tail-Spin, M. A. RAINES,

266

VINCENT, G. E., The University and Public Health,

245

VIOL, C. H., Radium Production, 227
Vitamin Tests, R. J. SEYMOUR, and E. P. DURRANT,

448
VRIES, H. DE, Bastardierung, A. Ernst, 381

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Being No. 2 of a series of announcements dealing with our
accomplishments during the war. The first appeared in
December issue; others will follow monthly.

Thuringia and Bohemia, countries which are now the subject of universal discussion, had

for several hundred years prior to the great war almost a monopoly of the glass indus-
try of the world. Glass blowing establishments elsewhere in Europe and in America
were called upon to manufacture only apparatus of special design or to do repair
work. That is to say, all regular laboratory apparatus,

the product of the labor of
thousands of skilled glass workers of Thuringia and Bohemia, was imported to

America by case lots.
Import houses like ours, who had in the past depended on them, were from the very beginning

of the war entirely cut off from these countries, and it needs no vivid imagination
to picture the serious condition then confronting laboratory supply houses, consider-
ing that there were not enough skilled glass blowers in France, England and the
United States organized industrially to meet even a small part of the American

demand.
Eimer and Amend faced this situation, fortunately, with the largest supply of chemical

laboratory glassware of any house in the United States. This enabled us to fill
thousands of orders-sometimes with a suggested substition as to size or style

while we were preparing for extensive manufacturing on our own premises.
Adding another shop to our equipment at that time soon doubled our output; but it was

easy to see that much more strenuous efforts were necessary to meet the demands
which kept pouring in upon us. Firstly, additional factory space was needed.
Secondly, additional equipment and machinery were needed. Thirdly, experienced
glass blowers had to be atiracted to our shops. Fourthly, promising young appren-
tices had to be engaged to learn the elements of glass blowing, glass grinding, cali-
brating, etching, and the many tricks necessary to this highly skilled trade ; a trade

which we have learned to respect as little short of an art.
How far we succeeded may be judged from the fact that today our force of glass blowers is

nearly seven times its 1914 size ; our output is possibly ten to fifteen times what it
then was ; and with it all we have maintained a standard HIGHER than that of the
far-famed Thuringian manufacturers. Our unequalled facilities are now available

for peace-lime orders.
A substantial share of credit for these accomplishments belongs to our customers and

friends. Without their forbearance, we should not have been able to make such
rapid progress toward factory production. In offering sincere thanks to our sup-
porters for their patience and good will during that loying period of uncertainty,
when irritating delays in shipments occurred none too infrequently, we would only
add that our efforts shall be continued, now that the war is over, in the hope of mak-
ing this industry, fostered by their tolerant cooperation, a permanent one, worthy of
other American achievemenis.

EIMER & AMEND

NEW YORK AND PITTSBURGH

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Increased Factory Facilities

Including the building and operation of the most ideal optical glass factory in America

possibly the world—one of the marvels of our great war program,
ENABLES US TO PROMPTLY RESUME MANUFACTURE OF INSTRUMENTS

OF PEACE:
MICROSCOPES

MICROTOMES
DELINEASCOPES

SCIENTIFIC APPARATUS
IN A LARGER AND MORE COMPLETE WAY THAN HERETOFORE

It also permits the maturing of plans for the manufacture of

Optical Measuring Instruments

In which we expect to incorporate superior features, making them excel European models.
The first of these instruments which we expect to have ready will be an

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THERESA SEESSEL RESEARCH Proceedings of the Biological FELLOWSHIPS

Society of Washington TO PROMOTE ORIGINAL RESEARCH IN Thirty-one Volumes Published, which contain BIOLOGICAL STUDIES

thousands of original descriptions of taxoYALE UNIVERSITY

nomic groups in Zoology and Botany and are

a necessity to systematic workers. TWO FELLOWSHIPS, yielding an income of $1,000 each, open to men or women. Preference is given to candidates who If you want these valuable Proceedings, act have already obtained their Doctorate, and have demonstrated by their work fitness to carry on successfully original research

now, as only three complete sets are available of a high order. The holder must reside in New Haven dur- from the Society. Price for the 31 volumes in made to the Dean of the Graduate School, New Haven, Conn., original brochures, $93.00. Annual Subscripbefore April 1, 1919; they should be accompanied by reprints tion, $3.00. of scientific publications and letters of recommendation, and a statement of the particular problem which the candidate expects to investigate.

Bulletin of the Biological Society OPTIC PROJECTION

of Washington Principles, installation and use of the Magʻo Lantern, Opaque Lantern, Projection Microbeope and Moving Picture Machine; One Volume published: A Sketch of The Nat700 pages, 400 figs. By Somon HENRY GADE, B.S., and ural History of the District of Columbia, 142 HENRY PHELPS Gage, Pa.D. Postpaid, $3.00.

pages, 5 maps. THE COMSTOCK PUBLISHING CO., Ithaca, N.Y. Essential to libraries desiring complete

collections on general or local natural history, TEACHERS WANTED on the geography or distribution of life in

Eastern United States, or on the Coastal Plain Men needed for college positions:-Physics, $2000; Biology, $1600; Chemistry and Physics, $1709; Instructor in Physics; and Pine Barrens. Price $2.15 postpaid. $1500; Assistant in Chemistry. $1500. Special terms. Address

BIOLOGICAL SOCIETY
THE INTERSTATE TEACHERS' AGENCY
MACHECA BUILDING
NEW ORLEANS | Biological Survey

Washington, D. C.

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