6o8 



EVOLUTION, GENETICS, AND EUGENICS 



Biometry: discussion of, 430-40; rise 

 and vogue of, 38-39 



Birds: rudimentary teeth of, 130; wing 

 of, 71 



Birgiis latro, 75-76, 78 

 Bison aniiquus, 156 

 Blakeslee, A. F., 376, 489, 496, 500 

 Blastoderm, 125 

 Blastula, 125 



Blends, in heredity, 374-76 

 Blood-precipitation tests, evidences 

 from, 60, 108-12 



Bonnet, R., 16 



Boyd-Dawkins, 98 



Brachydactylism, 518-19; inheritance 



of, 358-59 

 Bridges, C. B., 359, 403, 416, 421, 496 

 Briinn, 40, 41 

 Buffon, G. L. L., 7, 15-17 

 Bullen, G. E., 228 



Cameline: forefoot, 146: skull, evolu- 

 tion of, 145 



Camels, fossil pedigree of, 144-46 



Cape de Verde Islands, fauna of, 177 



Carex, 493 



Carnot, S., 286 



Carsinas maenas, 265 



Castle, W. E., 39, 40, 41, 43, 270, 295, 

 358, 390-91, 424, 427-28, 443-44, 

 459-60 



Cataract, inheritance of, 519 



Catastrophism, 22-23 



Cave animals, eyes of, 81-82, 204-5 



Cebidae, no 



Cell: diagram of typical, 304; division, 

 direct, 303-4, division, indirect or 

 mitotic, 303-4, 362-65; division, so- 

 matic, 362-65 



Cenogenetic, 123 



Centrosome, 303-5 



Cesnola, 266 



Cetacea, 128 



Chamberlin, T. C, 57 



Chambers, R., 23, 26 



Chapin, C. V., 580 



Child, C. M., 196-97, 463 



Child mortality in long-lived families, 

 561 



Chimpanzee, 159 



Chromatin, 303; interchange between 

 homologous chromosomes, 367; nu- 

 cleolus, 303 



Chromosomes, 303, 304-5, 326-27; con- 

 jugation of pairs of, 366; of Drosophila, 

 310; in heredity, 315-16; independent 

 distribution of, 367-68; individuality 

 of, 309; maps to show loci of genes, 

 422-23, 426; of mosquito, 327; num- 

 ber and appearance, 306; pairs of, 

 305, 366; reduction of, 310-11, 365; 

 and sex in Drosophila, 368-82; sig- 

 nificance of, 274-75 



Clark, J. M., 155 



Classification: basis of, 101-3; evi- 

 dences from, 60, 101-3; international 

 code of, loi; method of, 104-5 



Clausen, R. E., 295, 323-38, 360-71, 399 



Cleavage of egg, 307 



Cocoa-nut crab, 75-76, 78 



Coefficient of correlation, 435-36 



Coincident selection, 277-7S 



Color blindness, heredity of, 408-9 



Color in animals, 205-11 



Coluber anthonyi, loi 



Colubridae, loi 



Colubrinae, loi 



Commensalism, as adaptation, 202-3 



Communal life, as adaptation, 203-4 



Comparative anatomy, evidences from, 

 60, 66-100 



Conklin, E. G., 411-12, 435, 440, 456- 

 63 



Conjugation, of homologous chromo- 

 somes, 366 



Convergence, Osborn's law of, 211-13 



Cope, E. D., 39 



Correlation: coefficient of, 434-35; 

 tables, 435 



Correns, C, 40, 43. 339, 352-53, 374-75, 



383 

 Cossonidae, 179 



Coulter, J. M., 345-51. 372-8? 



Coulter, M. C, 345-51, 372-87 



Crampe, H., 511 



Crampton, H. E., 5, 32, 2S0 



Crataegus, 4 



Cretins of Aosta, 460-61, 522-23, 575- 

 76 



