INDEX 



393 



Heterozygote, 98. 

 Heterozygous, 90. 

 Homozygote, 98. 

 Homozygous, 90. 

 Hormones, 252. 

 Horse, ancestor of, 13. 



Clydesdale, 136. 



Prevalski's, 134. 



Shire, 136. 



unit-characters of, 134. 

 Hoshino, 200. 



Human crosses, English-Polynesian, 268. 

 Boer-Hottentot, 269. 

 Jew-Anglo Saxon, 274. 

 Negro-white, 271. 

 Huxley, 12. 

 Hybrid, 79, 83. 

 Hydatina, 254. 



Illiteracy, 290. 



Immigration, 290. 



Inbreeding, 222, 223, 224, 227, 230. 



Insanity, 280. 



Instinct, 41. 



Intense pigmentation, 127. 



Jennings, 209, 240. 

 Johannsen, 94, 208, 247. 

 Jones, 244. 

 Jungle fowl, 145. 



Kammerer, 29, 37. 



Kellogg, 33. 



King, 129, 222, 231, 238, 256. 



Knight, 86. 



Kolreuter, 83. 



Lamarck, 17, 18, 47. 

 Leaves, forms of, 152. 

 Light effects, 38. 

 Lillie, 252. 

 Linkage, 120, 167, 180. 



chromosome theory of, 168. 



measurement of, 172. 

 Little, 111, 125, 139, 179. 

 Lizard, 37. 

 Lock, 12, 83. 

 Loeb, 43, 256. 



Lychnis, 262. 

 Lyell, 8. 



MacDowell, 224. 



Macroganiele, 253. 



Maize, 151, 174, ]f)l, 211, 223, 228. 



Malthus, 15. 



Marriage of noar-of-kin, 227. 



McClung, 200. 



Mean, 64. 



Memlcl, 82, 190, 248. 



Mendel's law, 55, 82, 88. 



Mendelian expectations, 104. 



ratios, nioflified, 109, 110, 119. 

 Mental ability, inheritance of, 279. 

 Miastor, 51. 

 Microgamete, 254. 

 Microtus, 124. 

 Miller, 139. 

 Mirabilis, 86, 110,206. 

 Mode, 59. 

 Mongrel, 83. 



Morgan, 52, 120, 249, 251. 

 Morphology, 13. 

 Moth, brown-tail, 43. 

 Mulatto, 277. 

 Mule- footed swine, 138. 

 Multiple allelomorphs, 187, 219. 

 Multiple factor hypothesis, 192. 

 Mus alexandrinus, 125, . 



rattus, 124. 

 Mutants of Oenothera, 76* 

 Mutation, 14, 71, 182, 185, 189. 



varieties of, 208. 

 Mutilations, 28. 



Nabours, 176. 



Natural selection, 11, 17, 56. 



Naudin 87. 



Negro, white-spotted, 277. 



Nicotiana, 85, 229, 236, 242. 



Nilsson-Ehle, 193, 



Oenothera, 49, 75, 221. 

 Origin of Specieti, 11, 17. 

 Osborn,8, 19,266. 



Ovarian transi)hintalion in fowls, 251. 

 in guinea-pigs, 24. 





