394 



INDEX 



Ovarian transplantation in rats, 251. 

 Overproduction, 11. 

 Oxford "class lists," 279. 



Pangenesis, 24, 26, 48. 

 Parallel induction, 35, 54. 

 Paramecium, selection for size in, 209. 

 Parental generation, 100. 

 Parthenogenesis, 212. 



in distant crosses, 236. 



in frog, 256. 



in honey-bee, 257. 



in orange, 257. 



in sea-urchin, 237. 



male, in strawberry, 



237. 



in teosinte, 237. 

 Pasteur, 29. 

 Payne, 225. 

 Pearl, 238. 

 Pearson,57, 68, 279. 

 Pearson, 57, 68, 279. 

 Peas, dwarf and tall, 152. 



flowering time of, 200. 

 linkage in, 174. 

 Pebriue, 29. 

 Pelargonium, 211. 

 Peppers, size inheritance in, 202. 

 Peromysciis, 123, 125. 

 Phenotype, 94, 102. 

 Phillips, 24, 125, 140, 179, 197. 

 Pictet, 33. 



Pink-eyed rodents, 126. 

 Pitcairn Island, 2G8. 

 Plants, unit-characters of, 149. 

 Plato's Eepublic, 292. 

 Plums, self-sterility in, 229. 

 Polymorphism, 52. 



Polynesians and venereal disease, 305. 

 Potato beetle, 35. 

 Poultry, unit-characters of, 145. 

 Pressure effects, 38. 

 Prevalski's horse, 134. 

 Prunula, 150, 173. 

 Probable error, 68. 

 Proteus, 40. 

 Prune, new variety of, 210. 



Punnett, 104, 109, 120, 125, 145, 173, 



198. 

 Pure line hypothesis, 215. 



Rabbit, 26, 67, 191. 



Dutch-marked, 125, 224. 



ear-length of, 194. 



Enghsh, 125, 183. 



gray coat of, 205. 



Himalayan, 138. 



size inheritance in, 191. 

 Race mixture and venereal disease, 306. 

 Rat, 117, 176, 222, 230. 



hooded, 184, 223. 

 Regeneration, 51. 

 Regression, 247. 

 Reversion, 113. 

 Riddle, 255. 

 Roan cattle, 110. 

 Rock pigeon, 114. 

 Rodents, unit-characters of, 122. 

 Romanes, 31. 

 Rosanoff and Orr, 281. 

 Rough coat of guinea-pigs, 128. 

 Ruby eye of rats, 129. 



Saint-Hilaire, 18. 



Salaman, 274. 



Salamander, 37. 



Salinity, altered, 32. 



School rank and success in later life, 



279. 

 Sebright bantam, 251. 

 Segregation, 91. 

 Selection, 71, 184, 189, 222, 223. 



in Aphis avenae, 214. 



in beans, 215. 



in Daphnia, 213. 



in hooded rats, 184. 



in Paramecium, 209. 



in parthenogenesis, 213. 



in pure lines, 215. 



in Simocephalus, 214. 

 Self-fertilization, 75, 223, 228. 

 Self-pollination, 228. 

 Self-sterility, 229. 

 Semon, 29, 41. 

 Sex-chromosome, 157. 



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