SCIENCE 



[Contents and 

 Index. 



Burnliani, Sherturne Wesley, E. B. Frost, 373 

 BiXENS, K., Star Diameters, 556 



Cajori, F., Reply to Professor Horn, 189; His- 

 tory of Seienee and the Amer. Assoc., 163; Eu- 

 clid of Alexandria and Euclid of Megara, 414 



California Acad, of Sci., 133 



Calmette, Professor, on a Vaccine for Tubercu- 

 losis, 131 



Campbell, W. W., Astronomical Research m 

 Southeastern States, 116; Human Nature as a 

 Repeating Factor, 211; Extramundane Life, 457 



Canadian Arctic Expedition, Anthropological Pub- 

 lications of, 86 



Carbon Dioxide from Strawberries, 23 



Carmichael, R. D., National Temperament in 

 Scientific Investigations, 298 



Carnegie, Trust for Scottish Universities, 279; In- 

 stitutes at Pittsburgh, 529 



Castle, W. E., New Type of Inheritance, 339; 

 Genetics of the "Chinchilla" Rabbit, 387 



Cattell, J. McK., Practical Psychology, 30; 

 American Men of Science, 118 



Cayeux's Petrography of the Sedimentary Rocks, 

 M. I. Goldman, 459 



Cell, Mechanism of Injury and Recovery of the, 

 "W. J. V. OSTERHOUT, 352 



Challenger Expedition, New, 301 



Chamberlin, R. T., Section E — Geology and Ge- 

 ography, 242 



Chemical Soc, Amer., 24, 49; C. L. Parsons, 143, 

 217, 239, 263, 328, 504, 576; Cellulose Sec, 69 



Chemicals for Research Work, 209 



"Chinchilla" Rabbit, Genetics of the, W. E. 

 Castle, 387 



Chromosomes of Conocephalum conicum, A. M. 



'SHOVirALTER, 333 



Clark, A. H., Plankton Investigations, 327 

 Clark, H. L., Extramundane Life, 457 

 Clarke, J. M., Executive Committee on Natural 

 Resources, 550; C. H. Smyth, Jr., R. Rdede- 

 MANN, Henry Piatt Gushing, 510 

 Cleland, H. F., Scientific Publications and Post- 

 offices, 180 

 Climatic Oscillations in Prehistoric Time, C. A. 



Reeds, 22 

 Coal, World Production of, in 1920, 431 

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



of the Southern States, 517 

 CoKEB, R. E., The Protection of Natural Resources, 

 295; Biological Station at Fairport, Iowa, 447 

 Conn, H. J., Biological Stains, 289 

 Conservation, of Game, H. B. Ward, 288 ; Confer- 

 ence, 406; Duty of Scientific Men in, H. S. 

 Graves, 505 

 Cook, M. T., Stevens on Diseases of Economic 



Plants, 502 

 Copper in Animals and Plants, R. A. Mhttkowski, 



453 

 Coral Reefs of Tutuila, W. M. Davis, 559 

 Corner, G. W., Ovarian Cycle of Swine, 420 

 CoKT, W. W., Sex in Schistosomidse, 226 

 Cross, W., Lance and Fort Union Formations, 304 

 Crows' and Starlings, F. R. Welsh, 485 

 Culture Medium for Daphnids, A. M. Banta, 557 

 Curie, Madame, Visit to America, 327, 381, 497, 

 509, 513 



Gushing, Henry Piatt, J. M. Clarke, O. H. 

 Smyth, Jr., R. Ruedemann, 510 



D., W. M., Landslide near Mont Blanc, 535 



Daphnids, A. M. Banta, 462, 557 



Darling, S. T., Hookworms in the Zoological 

 Regions, 323 



Davis, W. M., Memoir of G. K. Gilbert, 139 ; Coral 

 Reefs of Tutuila, 559 



Dean, B., Isao lijima, 356 



Dempster, A. J., Positive Ray Analysis of Lith- 

 ium, 363 



"Denudation," "Erosion," "Corrosion" and 

 "Corrasion," M. H. Bissell, 412 



Dike, New, near Ithaca, N. Y., P. Sheldon, 20 



Discussion and Correspondence, 20, 42, 73, 90, 116, 

 137, 163, 187, 211, 235, 257, 286, 304, 333, 363, 

 412, 437, 457, 484, 499, 515, 534, 556, 574 



Dodge, R. E., Assoc, of Amer. Geog., 267 



DoTVELL, S. T., Peanut-fed Rabbits, 487 



Downing, E. R., Scientific Basis of Science Teach- 

 ing, 250 



Dresden, A., Amer. Math. Soc. at Chicago, 463 



Drosophila. Fourth Chromosome of, C. C. Little, 

 167; C. B. Bridges, 308 



Dd Shane, C. P., Sidewalk Mirage, 236 



Ddtcher, R. a., E. V. Anderson, C. H. Eckles, 

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



Einstein, Solar Field and Space of Six Dimen- 

 sions, E. Kasner 238; Lectures toy, 382 



Elections by the National Academy of Sciences, 

 454 



Electrification of Water and Osmotic Flow, J. 

 LoEB, 77 



Elliot, Daniel Giraud, Award of Medal, H. F. Os- 

 BORN, 480 



Ellis, F. W., Subepithelial Glycogen Cells in Em- 

 bryo, 418 



Elmore, C. J., Rainbow by Moonlight, 415 



Embouchure, Adjustable, C. Barus, 47; A. G. 

 Webster, 188 



Engineering, Council, Amer., 17; D. S. Kimball, 

 399, 407 ; Exchange of Professors of, 482 



Enzyme Reaction as exemplified by Pepsin Di- 

 gestion, J. N. Northrup, 391 



Equilibriimi Functions of the Internal Ear, S. S. 

 Mas;well, 423 



Euclid of Alexandria and Euclid of Megara, F. 

 Cajoki, 414 



Eugenie Congress, International, 16 



Executive Committee on Natural Resources, J. M. 

 Clarke, 550 



Extramundane Life, H. L. Clark; 457; W. W. 

 Campbell, 457; E. Hayes, 536 



Federal Government, H. Hoover, 397 



Fessenden, R. a., Relativity and Estimates of 

 Star Diameters, 287 



Field, R. M., Use of the Term "Fossil," 117 



Fisher, W. J., Star Time Observations, 94; Mi- 

 rage at Sea, 236 



Fishery Matters in Congress, 87 



Flint, Professor, Resignation of, 253 



Flora of Northern South America, N. L. Britton, 

 29 



Food Research Institute at Stanford University, 

 209 



