6i8 



EVOLUTION, GENETICS, AND EUGENICS 



Phenotype, 215, 242 



Phenotypic, 215, 242 



Phillips, J. C, 411-12 



Phocochaerus, 402-3 



Phyloxerans, 224 



Physiological units, 28 



Visum qiiadratitm, 233; P. saccharatum, 

 233; P. sativum, 245; P. umbellatum, 



233 

 Pithecanthropus credits, 149-53 



Planetesimal hypothesis, 49 



Pliny, 14 



Pliohippus, 135 



Poebrotherium, 135-36 



Polar bodies, 206 



Polyploidy, 299, 331-32 



Popenoe, P., 508-20 



Post-Aristotelians, 14 



Poulton, E. B., 395 



Poultry, sex-linked heredity in, 282-83 



Preformation doctrine, 117 



Prenatal influences, 13-14 



Presence and absence hypothesis, 253- 

 54, 275 



Primates: geologic record of , 145; origin 

 of, 144-45; place of origin, 144; stock 

 of, 144; time of origin of, 144 



Prim ula kewensis, 332; P. si)ioisis, 246, 



297 

 Priority, law of, 93 



Probable error, 559 



Procamelus, 137-38 



Promise of race culture, 532 ff. 



Protohippus, 135 



Prophases of mitosis, 194 



Protylopus, 137-38 



Pterodactyl, wing of, 63 



Punnett, R. C, 237, 247, 248 



Pure lines, heredity in, 200, 210, 212-16 



Purity of gametes, 238-39 



Python, hind limbs, of, 70-71 



Quadrumana, 77-79 



Rabl, C, 107 



Race culture and human variety, 539-40 

 Races, and individuals, 190; as evolu- 

 tionary units, 190 

 Rana sylvatica, 411; R. palustris, 411 

 Recapitulation, doctrine of, 60, n 2-13; 

 critique of, 114-22 



Recessive characters in man, 449-50 

 Recombination, Mendel's law of, 274-75 



Reduction divisions in maturation, 204, 



566-67 

 Reproduction, modes of, 196-98 

 Reproductive processes, 196-208 

 Reversion, 13 



Revival of science, the 15-16 

 Rhodeus amarus, 376 

 Rignano, E., 413 

 Robinson, L., 8r 

 Rodentia, loss of teeth in, 121 

 Romanes, G. J., 35, 57, 58-92, 164-73 

 Roosevelt, T., 381 

 Rosa, 331 



Rosanoff, A. J., 461-62 

 Rubus, 332 

 Ritmex, 332 



Ruminants, collar-bone of, 121 

 Ruskin, J., 544 

 Ruskin and race culture, 544 



Sacculina, 112, 122, 357 



Saleeby, C. W., 532-45 



Salatory, variations, 38, 313 



Sandwich Islands, fauna of, 172-73 



Saunders, 395 



Schoetensack, Dr., 152 



Schuchert, C, 130-32 



Scott, W. B., 5, 6, 100-104, 114-23, 125- 



26, 136-37, i45 

 Seals, comparative anatomy of, 58-59 

 Secondary sexual characters, 228 

 " Segregation, Mendel's law of, 40-42, 



234-37, 273 

 Semon, R., 413 



Serology, evidences from, 52 



Sex determination, 219-27; chromo- 

 some mechanism of, in Drosophila, 

 221 ff. ; in parthenogenetic species, 

 224-25; nutrition theory of, 219; re- 

 lation of, to genetics, 218; at time of 

 fertilization, 219-20; various theories 

 of, 219 ff. 



Sex differentiation, 227-31 



Sex, heredity and, 44 



Sex-linked inheritance, 277-84; rules for, 

 284; in man, 450 



Sexual selection, 26, 585 



Shelford, V. E., 351 



Shull, A. F., 93-95, 136, 139-43, 163-64 



