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Cloth, net.. .$6.00 PHILADELPHIA LEA & FEBIGER 706-8-10 Sansom St NEW YORK 2 West 45th Street NEW SERIES. VOL. LII.-JULY TO DECEMBER, 1920 NAMES OF CONTRIBUTORS ARE PRINTED IN SMALL CAPITALS Abel, O, Die Stämme der Wirbelthiere, W. D. MATTHEW, 37 Absorption-Transpiration Ratio in Nutrient Media, E. S. JOHNSTON, 517 ADAMS, E. Q., Rational System of Units, 527 African Rift Valleys, W. M. DAVIS, 456 Albino Vertebrates, J. S. DEXTER, 130 ALLARD, H. A., Flight of Fireflies and Flashing ALLBUTT, T. C., Medical Research, 115 Ameghino, Works of, R. L. MOODIE, 469 Anthropological Problems of the Far East, A. HRDLICKA, 567 Anthropology, Institutes of, K. PEARSON, 371 Anti-vivisection, California Legislation, 334 ARNOLD, R., Earthquakes at Los Angeles, 121 Astronomical Soc., Amer., J. STEBBINS, 542 Astronomy, Daily Influence of, W. W. CAMPBELL, 545 Atmometers, B. E. LIVINGSTON and F. THONE, 85 Atoms in Common Metals, A. W. HULL, 227 Australia, Booming Lizard, W. H. BONE, 273 Austrian Meteorologists' Appeal for Aid, 357 Bacteriology, Twenty-five Years of, S. FLEXNER, 615 BALDWIN, W. M., X-ray Energy acting upon Frogs' Ova, 229 Banks, Joseph, Centenary of, 123 Barbour Microdissection Apparatus, H. B. GOODRICH, 252 BARTON, S. G., Eric Doolittle, 378 BARUS, C., Spiral Nebulae, 112; Compression of a Sound Wave, 586 BATEMAN, H., Electricity and Gravitation, 314 BAUER, L. A., Light Deflection in Solar Eclipse, 147 BELLING, J., A. F. BLAKESLEE and M. E. FARN- BERRY, E. W., Diastrophism, 315; Paleontology and Pragmatism, 529 Biochemical Research in England, 37 Biometric Laboratories at University College, 30 Bishop Museum and Pan-Pacific Scientific Con- BONE, W. H., Booming Lizard of Australia, 273 Bouvier, C. L., La Vie Psychique des Insects, W. M. WHEELER, 443 BÖVING, A. G., John Sahlberg, 216 BRASCH, F. E., History of Science Section and Progress of Science, 559 Brewster Collection of Birds, 32 BRIGGS, F. N. and W. W. MACKIE, Fungicidal Dusts for Control of Smuts, 540 British, Association, 209, 233, 257, 273, at Cardiff, 341; Science Guild, 76; Chemists, Headquarters for, 168; Department of Scientific and Industrial Research, 288; National Physical Laboratory, 310; Ministry of Agriculture, 485; National Union of Scientific Workers, 576 BROOKS, C. F., Amer. Meteorological Soc., 205 BRUES, C. T., Research Problems, 492 BURR, F. F., H. H. PLATT and S. R. WILLIAMS, Mirages, 290 CAJORI, F., Galileo's Experiment, 409 Calcium Metabolism, E. B. HART, H. STEENBOCK and C. A. HOPPERT, 318; E. F. ROBB, 510 California, Acad. of Sci., Lectures on Astronomy, 335; Collection of Birds, 486; Institute of Technology, 356 CAMPBELL, W. W., Relations with Teutonic Scientists, 109; Daily Influence of Astronomy, 545 Canada, Power Resources, 332 CARLSON, C. O., Nebraska Academy of Science, 471 Carnegie Foundation and Research in Colleges, L. A. ROGERS, 176 372287 CASTLE, W. E., Linked Genes in Rabbits, 156 CAUDELL, A. N., Orthoptera, W. S. Blatchley, 251 CHAMBERLIN, T. C., Wisconsin Academy of Science, 1 Chemical, Research in France and England, 148; Conference, International, 244; Soc., Amer., 170, C. L. PARSONS, 158, 183, 206, 230, 254, 276, 297, 319, 345, 369, 390, 414, 564, 588, 612, 642, News Service, 403 CHEN, C. C. and J. B. S. NORTON, Corn Seed Parasites, 250 CHENEY, E. G., White Pine Blister Rust, 342 CHILD, C. D., Band Spectrum from Mercury Vapor, 248 Chromosomal Duplication, A. F. BLAKESLEE, J. Clements, F. E., Plant Indicators, F. H. KEARNEY, 609 COLE, F. N., Amer. Mathematical Soc., 518 Conservation of Quality of Water, W. F. WELLS, 279 Corn Seed Parasite, J. B. S. NORTON and C. C. Cornell University, Heckscher Foundation, 357 Cretaceous, Recedent Lake Shores of, J. R. WIE- Czecho Slovakia, Appeal for Publications, A. HRDLIČKA, 637 Daggett, Frank Slater, J. C. MERRIAM, 242 DAVIS, B. M., Heredity and Evolution in Plants, 410; Gager's Introductory Course in Botany, 597 DAVIS, W. M., African Rift Valleys, 456 Dean on Helmets and Body Armor in Modern Warfare, D. FRANKLIN, 201 DEGEER, G., Determination of Geochronology, 502 DEMPSTER, A. J., Positive Ray Analysis of Magnesia, 559 DENNISON, D. M., Crystal Structure of Ice, 296 DICKSON, B. T., Staining of Plant Pathogen, 63 Digestion, Psychological Factors in, J. R. Kantor, 200 Discussion and Correspondence, 13, 35, 59, 81, 107, 129, 154, 175, 198, 223, 248, 272, 290, 314, 339, 363, 386, 408, 442, 461, 490, 509, 537, 559, 581, 608 Diurnal Migration, C. O. ESTERLY, 307 Dock, G., Cost of German Publications, 608 DRESDEN, A., Amer. Mathematical Soc., 393 Drift Bottles in Gulf of Maine, J. W. MAVOR, 442 DUBIN, H. E. and C. FUNK, Vitamine Requirements of Rats, 447 DUERDEN, J. E., Mutations in Ostrich, 165 EARLE, F. S., Tropical Research, 363 INDEX. FAIRCHILD, H. L., Pleistocene Clays, 284 Family Names in Zoology, M. W. LYON, JR., 291; FARNHAM, M. E., A. F. BLAKESLEE and J. BELLING, Chromosomal Duplication, 388 Fat-soluble A and Xerophthalmia, A. D. EMMET, 157 Filters, Wrattan, C. E. K. MEES, 608 Fisheries, on the Gulf States, 31; Fairport Biological Station, 310; Bureau of, Laboratory Building at Fairport, Iowa, 503 FLEXNER, S., William Henry Welch, 417; Twentyfive Years of Bacteriology, 615 Flight of Fireflies and Flashing Impulses, H. A. ALLARD, 537 Floods, C. L. MEISINGER, 17 Foods and Drugs Act, Enforcement of, 124 FORBES, A. W., and A. G. WEBSTER, Thermal Calculations, 175 FORBES, E. B., Influence of Fresh Food in Lactation, 467 Forest School, Yale, 602 Forestry Education, 168 Fossil, Use of Term, A. M. MILLER, 408 Free Martin and its Reciprocal, C. G. HARTMAN, 469 Freezing Point Lowering and Electrical Conductivity, J. A. HARRIS, R. A. GORTNER and J. V. LAWRENCE, 494 Fungicidal Dusts for Control of Smuts, W. W. MACKIE and F. N. BRIGGS, 540 FUNK, C. and H. E. DUBIN, Vitamine Requirements of Rats. 447 Fur-seals. W. T. HORNADAY, 81; D. S. JORDAN, 225; of the Pribiloff Islands, 333 GAGER, C. S., Introductory Course in Botany, 597 NEW SERIES." VOE. LII. Galileo's Experiment, F. CAJORI, 409 GARRISON, F. H., Greek Science and Modern Science, 178; Scientific and Medical Manuscripts, 226 Gastric Responses to Foods, P. B. HAWK, R. J. Genera and Supergenera, A. S. HITCHCOCK, 107 Geochronology, Determination of, G. DEGEER, 502 Geographers, Assoc. of Amer., 438 Geographical Distribution of Marine Algae, W. A. SETCHELL, 187 Geological Excursion, New England Intercollegiate, 334, 458; Soc. of Amer., 486 Geology, Agricultural, J. E. SMITH, 139 GERICKE, W. F., Protein Content of Wheat, 446 Germany, Purchases in, J. L. HowE, 510; G. Dock, 608 Germination of Urophlyctes alfalfa, C. E. SCOTT, 225 Gilman Memorial Lectures on Geography, 358 GLEASON, H. A., Postglacial Time, 340; Biological Journal, 387 GODDARD, R. H., Recording Apparatus for Meteorological Research with Rockets, 559 Gold, World's Production of, 55 Gold, E., Aids to Forecasting, A. M., 155 GOODRICH, H. B., Barbour Microdissection Apparatus, 252 Gorgas, William C., M. W. IRELAND, 53 GORTNER, R. A., J. A. HARRIS and J. V. LAWRENCE, Freezing Point Lowering and Electrical Conductivity, 494 Greenland, Plan of Expedition to, L. KOCH, 552 GUDGER, E. W., Whale Shark on Florida Coast, 191 GUNTHORP, H., Distribution and Spermatogenesis of Myriapoda, 36 High Temperature and Emission from Gases, G. M. J. MACKAY, 636 History of Science Section and Progress of Science, F. E. BRASCH, 559 HITCHCOCK, A. S., Genera and Supergenera, 107 HOAGLAND, D. R., Nutrient Solutions for Plants, 562 HOBBS, W. H., Radicalism and Research, 177 HORNADAY, W. T., Fur-seal Industry, 81 HOWE, J. L., Purchases in Germany, 510 HUFF, W. J., Corrosion of Firearms, 61 HUXLEY, J. S., Intersexes in Drosophila, 59 274 Ice, Crystal Structure, D. M. DENNISON, 296 Illinois Academy of Science, Council Meeting, 533 Influenza in England, 123 Intersexes in Drosophila, J. S. HUXLEY, 59 JACKSON, H. H. T., Amer. Soc. Mammalogists, 19 JOHNSTON, E. S., Absorption-Transpiration Ratio in Nutrient Media, 517 JONES, A. T., Sounds of Splashes, 295 JONES, E. L., Surveying from the Air, 574 Journal, Biological, H. A. GLEASON, 387; of Morphology, W. C. ALLEE, 84 KANTOR, J. R., Psychological Factors in Digestion, 200 KASNER, E., Notes on Einstein's Theory, 413 KEARNEY, T. H., Plant Indicators, F. E. Clements, 609 KELLOGG, V., Entomology, J. H. Comstock, 61 KEMBLE, E. C., Helium and Hydrogen Models, 581 KENT, N. A., Potential Difference in Electric Cell, 205 Kentucky Academy of Science, A. M. PETER, 41 KIRBY, R. S., and H. E. THOMAS, Disease of Wheat, 368 KOCH, L., Plan of Expedition to Greenland, 552 KLOPSTEG, P. E., Titrating Electrometrically, 18 LIND, S. C., Radium Emanation, 640 LOEB, J., Proteins and Colloid Chemistry, 449 M., A., Aids to Forecasting, E. Gold, 155 MACCALLUM, G. A., Autopsy of Black Fish, 387 MACCAUGHEY, V., Hawaiian Olona, 240 MACKAY, G. M. J., Helium Arc, 366; High Tem- Maine Agricultural Station, Directorship of, C. D. Maize from Burma, G. N. COLLINS, 48 MALOTT, C. A., Static Rejuvenation, 182 Mammalogists, Amer. Soc., H. H. T. JACKSON, 19 Mathematical, Requirements, National Committee, 289; Soc., Amer., A. DRESDEN, 393; F. N. COLE, 518; Assoc. of Amer., 577 Mathematische Zeitschrifte, G. A. MILLER, 155 MAVOR, J. W., Drift Bottles in Gulf of Maine, 442 Mechanical Engineers, Amer. Soc., 437; Aeronaut- Medical, Education, 109; Research, T. C. ALLBUTT, 115; Education in the United States, 148; MEES, C. E. R., Wrattan Filters, 608 MEISINGER, C. L., Floods, 17; Tornadoes, 293; Aerological Work in the United States, 410; MELTZER, S. J., Men of Science in Rumania, 292 Mendola, Lake, Flora of, H. W. RICKETT, 641 Mercury Vapor, Band Spectrum, C. D. CHILD, 248 MERRIAM, J. C., Frank Slater Daggett, 242; Re- search Spirit of Average Man, 473 METCALF, M. M., Kofoid on Noctiluca, 110; Classi- Meteorological Soc., Amer., C. F. BROOKS, 205; Re- search with Rockets, R. H. GODDARD, 559 Meteorology, Notes on, LE ROY L. MEISINGER, 17; Microscopic Under-sea Life, 102 MILLER, A. M., Use of Term Fossil, 408 MILLER, G. A., Mathematische Zeitschrifte, 155 MILLER, R. J., O. BERGEIM and P. B. HAWK, Gas- Mills and Fishways, R. T. MORRIS, 365 Mines, Bureau of, 149; Missouri Experiment Sta- tion, 245; Low Temperature Laboratory, R. B. Mirages, H. H. PLATT, F. F. BURR, S. R. WIL- MONTGOMERY, P. M., Reprints from Scientific In- MOODIE, R. L., Works of Ameghino, 469 MOORE, C. R., Hermaphrodites in Mammals, 179 MOORE, R. B., Low Temperature Laboratory of MOOREHEAD, W. K., Explorations in Panhandle of MORGULIS, S., Scientific Men in Russia, 108; and MORRIS, R. T., Mills and Fishways, 365 Morse, Harmon Northrup, I. REMSEN, 497 Museum, of Nat. Hist., Expedition to Asia, 380; of Buffalo Soc. Nat. Sci., 632 Nebraska Academy of Science, C. O. CARLSON, 471 New York, Acad. of Sci., 633; Botanical Garden, Nela Research Laboratory, Reorganization, 150 Nutrient Solutions for Plants, D. R. HOAGLAND, 562 |