Chamberlain, F. Morton, G. D. HANNA, 323.
CHAMBERS, R. A., Micro-manipulation Apparatus,
411; Micro-injection Apparatus, 552.

Chemical, Laboratory of Cornell University, E. L.

NICHOLS, 651; Meeting in New York, 110;

Soc. Amer., C. L. PARSONS, 16, 34, 56, 116,
135, 138, 174, 203, 226, 254, 351, 441, 471, 525,
555, 582, 609, 638; Training, Relation of to
Industry, W. H. COOLIDGE, 367.
Chemistry, and Civilization, 218; And the Public,
251; Bureau of, and Dr. Carl L. Alsberg, 244;
in War, 302; Industrial and Engineering, Jour-
nal of, 486; Teaching of, N. E. GORDON, 656.
Chert Pits at Coxackie, E. R. BURMASTER, 216.
Chlorine and Mercury, Separation of the Elements
of, into Isotopes, W. D. HARKINS, 359.
Choulant on Anatomic Illustrations, F. T. LEWIS,
379.

Chromosome Relations in Wheat, K. SAX, 413.
CHURCH, M. B., and C. THOM, Mold Hyphæ in
Sugar and Soil, 470.

Clarke, J. M., Organic Dependence and Disease,
C. SCHUCHERT, 550.

CLAWSON, J. W., National Temperament in Scien-
tific Investigations, 53.

COBB, N. A., Howardula benigna, 667.
COBB, P. W., Experimental Differences, 200.
Coccidæ of Ceylon, G. F. FERRIS, 330.
COCKERELL, T. D. A., Earliest Bees, Wasps and
Ants, 155; Scientific Literature in Europe, 436;
Wollaston's Life of Alfred Newton, 465.

COMSTOCK, G. C., Extra-Mundane Life, 29.

Concilium Bibligraphicum, V. KELLOGG, 541.

Condensation Pump, E. H. KURTH, 608.

CONRAD, H. S., Vascular Plants, 15.

COOLIDGE, W. H., Chemical Training and Indus-

try, 367.

CORT, W. W., Expedition for the Study of Hook-
worm Disease, 595.

Cost of Printing Scientific Publications in

England, 114.

CRAMPTON, G. C., The Irreversibility of Evolu-

tion, 92.

CURTIS, HEBER D., On Sounds and Auroral Dis-
plays, 301.

Customs Legislation in England, 132.

DALL, W. H., The Life of the Pleistocene, A. C.

Baker, 606.

Danish Deep-Sea Expedition, 402.

DARWIN, L., Eugenical Societies, 313.

DAVENFORT, C. B., Research in Eugenics, 397.

DAVEY, W. P., Crystal of Rock Salt, 497.

DAVISSON, C., and C. H. KUNSMAN, The Scatter-

ing of Electrons by Nickel, 522.

Degrees, Honorary, at Yale, 10; Harvard, 11.
DEMPSTER, A. J., Ray Analysis of Zinc, 516.
"Denudation,'' "Erosion," "Corrosion" and
'Corrasion," F. H. LAHEE, 13; W. G. FOYE,

INDEX.

Dolo's Law, G. C. CRAMPTON, 92.

DOMINICK, BAYARD, Marquesan Expedition, 571.

DORSEY, N. E., Radioactive Quantity, 192.

DOUGLASS, A. E., Aurora of May 14, 1921, 14.

Drosophila melanogaster, Elimination of the X-

chromosome from the egg of, by X-Rays, J. W.

MAVOR, 277; Triploid Intersexes in, C. B.

BRIDGES, 252.

Duboscq Colorimeter, F. S. HAMMETT, 172.

Dyes for Bacteriology, 224.

Earthquake Rifts, B. WILLIS, 266.

Eclipse Expeditions to Christmas Island, 513.

Education, and Public Health, S. J. HOLMES, 503;

Special Bureau of, 404.

Educational Conference in Minnesota, 19.

Egg-laying Habits of Megarhyssa, W. MARCHAND,

607.

Eggs, Premature Obtaining

RIDDLE, 664.

from Birds, 0.

Einstein's Equations, E. KASNER, 304.

Electric Power Maps, 658.

Electrical Effect of the Aurora, F. SANFORD, 637.
Electrochemical Soc., Amer., A. D. SPILLMAN, 498.
Electrolysis, Natural Selection and, C. BARUS, 53.
Electrons, Scattering, by Nickel, C. DAVISSON
and C. H. KUNSMAN, 522.
Engineer, L. H. BAEKELAND, 417.
Engineers, American, in Europe, 70.
Engineering at Princeton, 49.
"Erosion, Denudation,"

"" "Corrasion" and
"Corrosion, F. H. LAHEE, 13; W. G. FOYE,

130.

Eugenical Societies, L. DARWIN, 313.
Eugenics, Second International Congress of, Ad-
dress of Welcome, H. F. OSBORN, 311; Research
in, C. B. DAVENPORT, 397; The American and
Norwegian Programs, H. F. OSBORN, 482.
Everest, Mount, Expedition, 429.

EVERMANN, B. W., Fur Seals of the Farallons,
547.

Evermann and Clark on Lake Maxinkuckee, T. L.
HANKINSON, 75.

Evolution, Problems in, E. S. GOODRICH, 529.
Exploration of the Upper Air, 268.

Fair Weather Predictions,, 171.

FAIRCHILD, H. L., Geology, A. W. Grabau, 494.
Farrand, President, Installation, 405.

FENNEMAN, N. M., Municipal Observatories, 630.
FERNALD, M. L., Distribution of Hybrids, 73.
FERRIS, G. F., The Coccide of Ceylon, 330.
Field, Herbert Haviland, H. B. WARD, 424.
Film Photophone, 373.

Fischer, Louis Albert, C. W. WAIDNER, 123.
Flies, House, 624.

FLINN, A. D., The Technical School and Indus-
trial Research, 508.

Forest, Experiment Station, North Carolina, 404;
A Southern, 487; Experiment Stations, 599.
Forestry, Educational, 148; Legislation, 188; Sit-
uation in, J. W. TOUMEY, 559.

FULCHER, G. S., Scientific Abstracting, 291.
Fur Seals, B. W. EVERMANN, 547.

GAGE, S. H., Oil-immersion Objectives, 567.

Gall Evolution, B. W. WELLS, 301.

Galvanometer, Living, G. G. SCOTT and JOSEPH

TUGAN, 90.

Gas Chain Calculator, P. E. KLOPSTEG, 153.

GAY, F. P., Public Health, 159.

Genetic Factors in Blended Inheritance, W. E.

CASTLE, 223.

Geographical Distribution of Hybrids, M. L.
Fernald, E. C. JEFFREY, 517.

Geological Congress Committee, 569.

Geology, Grabau's Text-book of, H. L. FAIR-
CHILD, 494; as a Profession, H. P. LITTLE, 619.

German Men of Science, Deaths of, 165.

GILMORE, C. W., Sauropod Dinosaur Remains, 274.

GILMORE, R. J., Ambystoma tigrinum, 13.

GILPIN, C. J., Country Planning, 131.

Gladiolus, Disease of, L. McCULLOCH, 116.

Goiter, E. R. HAYHURST, 131.

GOODRICH, E. S., Problems in Evolution, 529.
GORDON, N. E., The Teaching of Chemistry as a
Science, 656; and R. C. WILEY, Absorption by
Soil Colloids, 581.

GORTNER, R. A., Sigma Xi, 363.

Grabau, A. W., Geology, H. L. FAIRCHILD, 494.
Graphic Analytic Method, R. VON HUHN, 334.
Gregor Mendel and Scientific Work at Brunn,
E. B. BABCOCK, 275.

GREGORY, R., The Message of Science, 447.

Grimes, Earl Jerome, 658.

Growth, High-Temperature Record for, D. T.

MACDOUGAL, E. B. WORKING, 152.

HALDANE, J. B. S., Linkage in Poultry, 663.

HAMMETT, F. S., The Duboscq Colorimeter, 172.

HANKINSON, T. L., Lake Maxinkuckee, 75.
HANNA, G. D., Frederick Morton Chamberlain,
323.

HARKINS, W. D., The Separation of the Elements
Chlorine and Mercury into Isotopes, 359.

Harriot, Thomas, 85.

HARRIS, J. A., and H. R. LEWIS, Second-year

Record of Birds, 224.

Harrow, B., Vitamines, P. G. STILES, 358.

Harvard, School of Public Health, 188; College

Observatory, Director of the, 486.

HAUGHWOUT, F. G., Sporozoan Infection, 249.
HAYHURST, E. R., Goiter, 131.

Health, Public, Harvard School of, 188.
Hermann von Helmholtz, Centenary of the Birth
of, T. C. MENDENHALL, 163; "Optik," English
Translation of, J. P. C. Southall, 575.
HENRY, A. C., and J. F. MCCLENDON, Soil Fer-
tility and Vitamine Contents of Grain, 469.

Henry, Joseph, Fund of the National Academy

of Sciences, 542.

Hens, Second-year Record of Birds, J. A. HARRIS
and H. R. LEWIS, 224.

HERING, C., Electromagnetic Forces, 492.

HERRICK, C. J., Ranson's Anatomy of the Ner-
vous System, 409.

High-Temperature Record for Growth and En-

durance, D. T. MACDOUGAL, E. B. WORKING,

152; Altitude Expedition to Peru, 542.

HILLEBRAND, W. C., S. S. Voorhees, 484.

HOLMES, S. J., Public Health and Medicine, 503.

Hookworm Disease, Expedition to Study of, W.

W. CORT, 595.

HOOTON, E. A., Section E-Anthropology, 98.
HOPFIELD, J. J., On the Emission and Absorption
of Oxygen and Air in Ultra-Violet, 553.
Hospital, Fifth Avenue, of New York, 402;
Johns Hopkins, Medical Board, 125.
Host, An Ideal, R. A. SPAETH, 377.
HOWARD, L. O., On Some Presidential Addresses,
641; The War Against Insects, 646.
Howardula benigna, N. A. COBB, 667.
HOWE, J. L., Lawrence's Warbler, 302.
HRDLICKA, A., Congress of Americanists, 577.
HUHN, R. VON, A Graphic Analytic Method, 334.
Hunan-Yale College of Medicine, 126.

HUNT, F. L., and M. J. MYERS, Cardiac and
Respiratory Sounds, 359.

HUNTER, A. F., The Toronto Meeting, 605.

Hybrids, Geographic Distribution of, M. L. FER-
NALD, 73; E. C. JEFFREY, 517.

Hydrogen-ion, Concentration of Cultures of Con-
nective Tissue from Chick Embryos, M. R.
LEWIS and L. D. FELTON, 636; in Soil, C.
OLSEN, 539.

Hygiene, Public, Lectures, 459.

Illumination, Commission on, 218.

Impact on Bridges, 625.

Indexing, Cooperative, of Scientific Literature, 30.
INGERSOLL, L. R., Physical Museum of the Univ.
of Wis., 548.

Inheritance Blending, W. E. CASTLE, 96, 223.

Insects, Destructive, P. POPENAU, 113; War

Against, L. O. HOWARD, 646.

Iowa Lake Side Laboratory, 25; Acad. of Sei.,
JAMES H. LEES, 306.

JAQUES, H. E., Longlived Woodborer, 114.
JEFFREY, E. C., Distribution of Hybrids, 517.
JEFFREYS, H., Secular Perturbations of the Inner
Planets, 248.

Jennings, Herbert Spencer, Celebration, 25.
JOHNSON, D., Aerial Observations of Physio-
graphic Features, 435.

JOHNSON, E. H., The History of Science, 585.

Johnston, J., Natural History of Fishes, D. S.

JORDAN, 92.

JOHNSTON, W. D., The Acquisitive Instinct, 662.

JORDAN, D. S., Johnston's Natural History of
Fishes, 93; Latitude and Vertebræ, 490.
Jordan, Dr. W. H., The Retirement of, 270.

KAMM, O., Physiological Action of Alcohols, 55.
KASNER, E., Einstein's Equations, 304.
KARSNER, H. T., The Teaching of Pathology, 81.
KEEN, W. W., Vivisection, 250.
Keen's Surgery, S. MCGUIRE, 332.

KELLOGG, V., University and Research, 19; Status
of University Men in Russia, 510; The Con-
cilium Bibliographicum, 541.

Kentucky Acad. of Sci., A. M. PETER, 156.
KEYSER, C. J., Nature of Man, 205; Analysis of
Mind, B. Russell, 518.

KLOPSTEG, P. E., Gas Chain Voltage, 153.

KLOTZ, O., Meteorologische Zeitschrift, 663.

KROEBER, A. L., Population of California, 162.

KURTH, É. H., Á Condensation Pump, 608.

Land Utilization, 375.

Lane Medical Lectures of Stanford Univ., 460.

LANGMUIR, I., Types of Valence, 59.

Latitude and Vertebræ, D. S. JORDAN, 490.
Lawrence's Warbler, J. L. HOWE, 302.

LEE, H. A., and M. G. MEDALLA, Leaf Stripe
Disease of Sugar Cane in the Philippines, 274.
LEES, J. H., Iowa Acad. of Sci., 306.
LEWIS, F. T., Choulant's History and Bibli-
ography of Anatomic Illustrations, 379.
LEWIS, M. R., and L. D. FELTON, Connective
Tissue from Chick Embryos, 636.

LEWIS, W. L., John Harper Long, 48.

Liesegang's Rings, HUGH MCGUIGAN, 78; S. C.

BRADFORD, 463.

Life in Other Worlds, W. D. MATTHEW, 239.

LINDLEY, J. G., Aurora in Latitude 27° N., 14.

Linkage in Poultry, J. B. S. HALDANE, 663.

Linked Genes in Rabbits, W. E. CASTLE, 634.

LITTLE, H. P., Geology as a Profession, 619.

LIVINGSTON, B. E., Toronto Meeting of the Amer.

Assoc., 597, 623.

LOEB, J., Quantitative Basis of the Polar Charac-
ter of Regeneration in Bryophyllum, 521.

LONG, J. A., Microscopic Sections, 330.

Long, John Harper, W. LEE LEWIS, 48.

Lorentz, Professor, Lectures, 572.

LOVELACE, B. F., Chemistry in the U. S., 139.

MACCALLUM, G. A., Epidemic Pneumonia in
Reptiles, 279.

MCCLENDON, J. F., Vitamine Food-tablets and
the Food Supply, 409; and A. C. HENRY, Soil
Fertility and Vitamine Contents of Grain, 469.
MCCLUNG, C. E., Zoological Research, 617.
MCCULLOCH, L.,Bacterial Disease of Gladiolus, 116
MACCURDY, G. G., Fossil Man from Rhodesia, 577.
MCGUIGAN, H., Liesegang's Rings, 78.
MCGUIRE, S., Keen's Surgery, 332.
MacLeod, J. J. R., Physiology and Biochemistry
in Medicine, J. C. AUB, 577.

Magnetic Susceptibilities, S. R. WILLIAMS, 339.
Magneto-optical Effect, E. THOMSON, 84.
Man, Nature of, C. J. KEYSER, 205.
Mange in White Rats, A. H. SMITH, 378.
MANNS, T. F., and J. F. ADAMS, Fungi Internal
of Seed Corn, 385.

Mapping the United States, 165.

MARCHAND, W., Megarhyssa, 607.
Mastodon, in America, H. F. OSBORN, 108; Temple
Hill, S. C. BISHOP, 170; Prehistoric Engraving
of, J. L. B. TAYLOR, 357.
Mathematical Requirements, 295; Gift, G. A.
MILLER, 456; Soc. Amer., R. G. D. RICHARDSON,
584.

Mathematics, in Spanish Speaking Countries,
G. A. MILLER, 154; Pure, G. A. MILLER, 300.

MATTHEW, W. D., Cannonball Lance Formation,

27; Life in Other Worlds, 239.

MAURY, C. J., The Rediscovery and Validity of
Arca lithodamus Sowerby, 516.

MAVOR, J. W., Elimination of the X-chromosome

by X-rays, 277.

INDEX.

MEDALLA, M. G., and H. A. LEE, Leaf Stripe

Disease of Sugar Cane, 274.

Medicine, Spirit of Investigation in, L. G. ROWN-

TREE, 179.

MEHL, M. G., Photographing Fossils, 358.

MEISINGER, C. L., True Mean Temperature, 276.

Mellon Institute, Director of the, 375.

Mendelian or Non-Mendelian, G. A. SHULL, 213.

MENDENHALL, T. C., Hermann von Helmholtz, 163.

Mental Defectives in England, 403.

MERRIAM, J. C., and C. STOCK, Pleistocene Verte-
brates in an Asphalt Deposit in California, 566.
Metabolism Energy, Law of Surface Area in,
J. R. MURLIN, 196.

Meteorologische Zeitschrift, O. KLOTZ, 663.
Meteorology and Climatology, Notes on, C. LE R.
MEISINGER, 276.

Metric System, in Japan, HOWARD RICHARDS, 23;
English Pronunciation for the, T. L. BOLTON,
275; and the National Acad. of Sci., C. D.
WALCOTT, 628.

Miami Aquarium Association, Laboratory of, 430.

Micro-manipulation Apparatus, R. CHAMBERS,

411; Injection Apparatus, R. CHAMBERS, 552.
Microscopic Sections, Protecting from Injury,
J. A. LONG, 330.

Microscopy, Dark-field, Special Oil-immersion Ob-
jectives, S. H. GAGE, 567.

MILLER, G. A., Mathematics in Spanish Speaking

Countries, 154; Definition

of Pure

Mathe-

matics, 300; Mathematical Gift, 456.

MILLIKAN, R. A., The Significance of Radium, 1.

Molding Sand Research, 570.

MOODIE, R. L., Bacteria in the American Permian,
194; Stensiö on Triassic Fishes from Spitz-
bergen, 578; Advances in Paleopathology, 664.
Morse, E., Living Gasteropods of New England,
P. BARTSCH, 379.

Mortality Statistics for 1920, 429.

Mulford Biological Expedition, 148, 512.

Municipal Observatories, N. M. FENNEMAN, 630.

MURLIN, J. R., Energy Metabolism, 196.

Mycology, Bureau of, 242.

MYERS, M. J., and F. L. HUNT, Experiments on
Cardiac and Respiratory Sounds, 359.

National Temperament in Scientific Investiga-
tions, J. W. CLAWSON, 53; R. D. CARMICHAEL,

54.

Natural Selection and Electrolysis, C. BARUS, 53.

Naturalists, Amer. Soc. of, H. F. OSBORN, 576;

Toronto Meeting, 460.

Nature, Order of, R. D. CARMICHAEL, 631.

NICHOLS, E. L., Chemical Laboratory of Cornell

University, 651.

Nichols, Dr. E. F., and the Presidency of the
Massachusetts Institute of Technology, 543.
Nitrogen, Fixed, Production of, 87.
NORRIS, H. W., Sharks, 465, 630.

North, Carolina Acad. of Sci., C. S. BRIMLEY, 80;
Pacific Ocean, Map of the, 511.

OBERLY, E. R., Abstracts of Articles, 491.

ODELL, A. F., Sidewalk Mirages, 357.

OHSHIMA, H., The Sea-urchin, 578.

Ohio Acad. of Sci., E. L. RICE, 281.

Olenellus Fauna, S. J. SCHOFIELD, 666.

OLSEN, C., Hydrogen Ions in the Soil, 539.

SERIES

Paleopathology, Advances in, R. L. MOODIE, 664.
Parasitism as a Disease, T. SMITH, 99.
Paris Academy of Sciences, 24.

PARKER, F. W., The Displacement Method, 438.
PARKER, G. M., The Ray Society, 517.

PARSONS, C. L., Amer. Chem. Soc., 16, 34, 56, 116,
135, 138, 174, 203, 226, 254, 351, 387, 441, 471,
525, 555, 582, 609, 638.

Patent Office, 599.

Pathology, The Teaching of, H. T. KARSNER, 81.

Pawlow, Professor, 296.

PETER, A. M., Kentucky Acad. of Sci., 156.

Phenomenal Shoot, B. W. WELLS, 13.

Philosophical Soc., Amer., 336, 363, 389.
Physical Laboratory, British, 125; Museum of
the Univ. of Wisconsin, L. R. INGERSOLL, 548.
Physics, Problems of, O. W. RICHARDSON, 283;
Teaching, W. S. FRANKLIN, 283.

Planets, Secular Perturbations of, H. JEFFREYS,
248.

Pleistocene, Vertebrates in an Asphalt Deposit,
California, J. C. MERRIAM and C. STOCK, 566;
Life of the, W. H. DALL, 606.

Pneumatic Paradox in Acoustics, C. BARUS, 155.
Pneumonia Epidemic, G. A. MACCALLUM, 279.
Polarization of Sound, A. BULL, 202.

POOR, C. L., Motion of the Planets and the Rela-
tivity Theory, 30.

POPENOE, P., Control of Destructive Insects, 113.
Population of the German Empire, 324.
Precision Determination of the Dimensions of the
Unit Crystal of Rock Salt, W. P. DAVEY, 497.

PRIEST, I. G., Optical Soc. of Amer., 501.

Printers' Strike and SCIENCE, 9.

PROUTY, W. F., Phenomenal Shoot, 170.

Public Health Association, 326.

Quotations, 15, 30, 74, 114, 132, 171, 195, 224,

251, 302, 331, 378, 493.

Rabbits, Bleeding, G. F. FORSTER, 580.

RACOVITZA, E. G., Scientific Literature and Ap-

paratus for Roumania, 249.

Radioactive Quantity, N. E. DORSEY, 193.

Radium, Significance of, R. A. MILLIKAN, 1, 373.

Ranson's Anatomy of the Nervous System, C. J.

HERRICK, 409.

Ray Society, G. H. PARKER, 517.

REESE, A. M., Venomous Spiders, 382.

Relativity, Theory, C. L. POOR, 30; Bibliography

of, F. E. BRASCH, 303.

Research, University and, V. KELLOGG, 19; in

Eugenics, C. B. DAVENPORT, 397; Organization

for, 487; Spirit of, S. R. WILLIAMS, 538; How

to do, A. W. SIMON, 549.

RICE, E. L., Ohio Acad. of Sci., 281.

RICHARDS, H., JR., Metric System in Japan, 23.

RICHARDSON, O. W., Problems of Physics, 283.

RICHARDSON, R. G. D., Amer. Math. Soc., 416, 584.

Riddle, Lincoln Ware, W. J. V. OSTERHOUT, R.

THAXTER, M. L. FERNALD, 9.

RIDDLE, O., Premature Eggs, 664.

ROBERTS, E., Variation of Individual Pigs in

Economy of Gain, 173.

Rockefeller, Foundation, 109; Institute for Med-
ical Research, 49.

Roosevelt Wild 'Life Memorial, 166.

ROWNTREE, L. G., The Spirit of Investigation in

Medicine, 179.

Royal, Institution, 74; Observatory at the Cape

of Good Hope, 217; Society Medals, 659; So-

ciety of Canada, 229.

RUSSELL, H. L., Testimonial to, 520.

RUSSELL, H. N., V. M. SLIPHER, C. O. LAMPLAND,

The Aurora, 183.

Russell, B., The Analysis of Mind, C. J. KEYSER,

518.

Russia, University Men in, V. KELLOGG, 510.

S., Anecdote Concerning Dr. Field, 605.

SANFORD, F., Electrical Effect of the Aurora, 637.

SAPIR, E., Amer. Languages North of Mexico, 408.

Sauropod Dinosaur Remains, C. W. GILMORE, 274.

SAVILLE, M. H., Ancient Skeleton in Ecuador, 147.

SAWYER, R. A., and A. L. BECKER, Enhanced Line

Spectra, 305.

SAX, K., Chromosome Relationships in Wheat, 413.
SCHOFIELD, S. J., Olenellus Fauna in Southeast-
ern British Columbia, 666.

SCHUCHERT, C., Clarke on Organic Dependence

and Disease, 550.

SCIENCE and the Printers' Strike, 9.
Science, Club of the University of Texas, 69; of
the University of Mississippi, 108; Evolution
of, and the Place of Sigma Xi, R. A. GORTNER,
363; Message of, R. GREGORY, 447; Specializa-
tion in Teaching of, F. F. BURR, 464; History
of, in American Colleges, E. H. JOHNSON, 585.

Scientific, Events, 9, 24, 48, 68, 85, 108, 125, 148,

165, 187, 216, 242, 268, 271, 295, 324, 351, 373,

402, 428, 457, 485, 511, 542, 570, 599, 624;

Notes and News, 11, 26, 50, 71, 87, 111, 127,

150, 169, 189, 219, 244, 297, 326, 353, 376, 405,

431, 461, 488, 514, 545, 573, 601, 626; Litera-

ture, Indexing, Cost of Printing in England,

114; Abstracting, G. S. FULCHER, 291; E. R.

OBERLY, 491; and Apparatus for Roumania,

E. G. RACOVITZA, 248; in European Countries,

T. D. A. COCKERELL, 436; Bureaus of National

Societies, 544; Journals Published by the Gov-

ernment, 600; Investigations, National Tem-

perament in, J. W. CLAWSON, 53; R. D. CAR-

MICHAEL, 54; Books, 75, 92, 303, 332, 358, 379,

409, 437, 465, 494, 518, 550, 577, 606, 631.
SCLATER, W. L., The Zoological Record, 663.
SCOTT, G. G., and JOSEPH TUGAN, Living Gal-
vanometer, 90.

SEASHORE, C. E., George Trumbull Ladd, 242.

Shark and Remora, H. W. NORRis, 465.

Sharks at San Diego, H. W. NORRIS, 630.

Shoot, Phenomenal, W. F. PROUTY, 170.

SHULL, G. A., Mendelian or Non-Mendelian, 213.

Sidewalk Mirages, A. F. Odell, 357.

Sigma Xi, Meeting of Executive Committee,

HENRY B. WARD, 45; Secretaryship of, 572;

Lectures at Yale University, 488.

SIMON, A. W., How to Do Research, 549.
Skeleton, Ancient, M. H. SAVILLE, 147.

SLIPHER, V. M., H. N. RUSSELL, C. O. LAMPLAND,

The Aurora, 183.

SMITH, A. H., Mange in White Rats, 378.

SMITH, C. A., Utah Academy of Science, 96.

SMITH, T., Parasitism as a Disease, 99.

Smithsonian Institution, 68.

Social Aspects of Country Planning, C. J.

GILPIN, 131.

Soil Colloids, Absorption by, N. E. GORDON and R.
C. WILEY, 581; and the Reason for the Exis-
tence of This State of Matter, M. WHITNEY,
348, 653.

SOUTHALL, J. P. C., Helmholtz's "Optik," 575.

SPAETH, R. A., An Artificial Nerve, 360; An Ideal

Host, 377.

Special Articles, 15, 30, 55, 78, 93, 115, 133, 155,

172, 196, 224, 252, 277, 303, 334, 359, 385, 411,

438, 469, 497, 521, 552, 578, 607, 634, 664.

Specialization in the Teaching of Science, F. F.
BURR, 464.

SPILLMAN, A. D., Amer. Electrochem. Soc., 498.

Sporozoan Infection, F. G. HAUGHWOUT, 249.

Stains for the Mycelium of Molds, M. E. DIEMER

and E. GERRY, 629.

STANDLEY, P. C., Albinism in the Black Bear, 74.

STARKS, E. C., Inconsistency in Taxonomy, 222.

STEBBINS, J., Amer. Astronomical Soc., 440.

Steele Chemical Laboratory of Dartmouth Col-

lege, 458.

Stellar Parallaxes, Study of, 9.

Stensiö on Triassic Fishes from Spitzbergen, 578.
STILES, P. G., Vitamines, B. Harrow, 358.
Stone, Winthrop Ellsworth, 428.

STRONG, R. M., Whiteness in Hair and Feathers,

356.

INDEX

TOUMEY, J. W., State Forestry, 559.

TUGAN, J., and G. SCOTT, Living Galvanometer, 90.

University and Educational News, 12, 27, 52, 72,

90, 113, 129, 152, 192, 220, 247, 273, 300, 329,

355, 377, 407, 435, 463, 490, 516, 575, 603, 628.

Utah Academy of Science, C. A. SMITH, 96.

Vaccination for Smallpox in England, 217.

Valence, Types of, I. LANGMUIR, 59.

Variation of Individual Pigs, E. ROBERTS, 173.

Vascular Plants, H. S. CONRAD, 15.

Venomous Spiders, A. M. REESE, 382.

Ventilation, Ozone and, 457.

Vibrations of a Tuning Fork, P. T. YOUNG, 604.

Vitamine Food-Tablets and the Food Supply,
J. F. MCCLENDON, 409.
Vivisection, W. W. KEEN, 250.

Voorhees, Samuel Stockton, W. F. HILLEBRAND,
484.

WAIDNER, C. W., Louis Albert Fischer, 123.

WALCOTT, C. D., Scientific Bureaus of the Gov-

ernment, 493; The National Academy of Sci-

ences and the Metric System, 628.

WARD, HENRY B., Executive Committee of Sigma
Xi, 45; Herbert Haviland Field, 424.
WEAD, C. K., Acoustical Notes, 467.
Weather Predictions, 171.

WEATHERBY, L. S., Agar and the Removal of a
Swallowed Object, 221.

WELLS, B. W., A Phenomenal Shoot, 13; Gall

Evolution, 301.

WENRICH, D. H., Zoology-Methods of Teaching,
120.

Whiteness in Hair, R. M. STRONG, 356.

WHITNEY, M., Soil Investigations, 348; Origin of

Soil Colloids, 653.

WILLIAMS, S. R., Magnetic Susceptibilities, 339;
The Spirit of Research, 538.

WILLIS, B., Earthquake Rifts, 266.

WISE, L. E., The Chemistry of Cellulose, 479.
Wollaston's Life of Alfred Newton, T. D. A.
COCKERELL, 465.

Woodborer, Longlived, H. E. JAQUES, 114.
Woodward, Henry, 295.

World's Supply of Wheat, 268.

WYLIE, R. B., Botany at the Toronto Meeting, 576.

Yale University, Honorary Degrees, 10; Forest

School, 325.

YOUNG, Vibrations of Tuning Fork, 604.

Zine, Positive Ray Analysis, A. J. DEMPSTER, 516.
Zoological, Record, W. L. SCLATER, 663; Research
as a Career, C. E. MCCLUNG, 617.
Zoologists, Amer. Soc. of, 431, 600.

Zoology, General, Course in, D. H. WENRICH, 120.