334 



INDEX. 



Ostrich, American, two species of, 



Pelvis of women, i. 178. 



ii. 132. 



Peloria, i. 180. 



Ot r er. habits of, how acquired, i. 



Period, glacial, ii. 151. 



216. 



Petrels, habits of, i. 221. 



Ouzel, water, i. 222. 



Phasianus, fertility of hybrids, ii. 9. 



.ven, Prof., on birds not flying, i. 



Pheasant, young, wild, i. 329. 



167. 



Pictet. Prof., on groups of species 



, on vegetative repetition, i. 



suddenly appearing, ii. 77. 



181. 



, on rate of organic change, ii 



— — , on variability of unusually 



90. 



developed parts, i. 185. 



, on continuous succession of 



, on the eyes of fishes, i. 227; 



genera, ii. 93. 



, on the swim-bladder of fishes, 



, on change in latest tertiary 



i. 231. 



forms, ii. 71. 



, on fossil horse of La Plata, ii. 



-, on close alliance of fossils in 



96. 



consecutive formations, ii. 114. 



. , on generalized form, ii. 107. 



, on early transitional links, ii. 



, on relation of ruminants and 



78. 



pachyderms, ii. 107. 



Pierce, Mr., on varieties of wolves, 



, on fossil birds of Xew Zea- 



i. 111. 



land, ii. 121. 



Pigeons with feathered feet and skin 



, on succession of types, ii. 121. 



between toes. i. 14. 



, on affinities of the dugong, 



, breeds described, and origin 



ii. 206. 



of, i. 23. 



, on homologous organs, ii. 233. 



, breeds of, how produced, i. 44, 



, on the metamorphosis of ce- 



47. 



phalopoda, ii. 244. 



, tumbler, not being able to get 





out of egir, i. 106. 



P. 



, reverting to blue colour, i. 197. 





, instinct of tumbling, i. 327. 



Pacific Ocean, faunas of, ii. 131. 



, young of, ii. 248. 



Pacini, on electric organs, i. 235. 



Pigs, black, not affected by the 



Pal« y. vn no organ formed to give 



paint-root, i. 13. 



paiu, i. 251. 



. modified by want of exercise. 



Pallas, on the fertility of the domes- 



i. 249. 



ticated descendants of wild stocks, 



Pisil, rudimentary, ii. 256. 



ii. 10. 



Plants, poisonous, not affecting cer- 



Palm with hooks, i. 247. 



tain coloured animals, i. 13. 



Papaper bracteatum, i. 272. 



, selection, applied to, i. 41 



Paraguay, cattle destroyed by flies, 



, gradual improvement of, i 42. 



i. 89 



, not improved in barbarous 



Parasites, i. 334. 



countries, i. 43. 



Partridge, with ball of earth at- 



, dimorphic, i. 55 ; ii. 29. 



tached to foot, ii. 148. 



, destroyed by insects, i. 83. 



Parts greatly developed, variable, 



, in midsr of range, have to 



i. 1-5. 



struggle with other p. ants, i. 95. 



Parns major, i. 220. 



, pectar of, i. 114. 



Pa^irlora, ii. 7. 



, flesh v, on sea-.- Lores, i. 166. 



Peaches in United States, i. 104. 



, climbing, i. 230, 305. 



Pear, srafts of, ii. 18. 



, fresh-water, distribution of, ii. 



Pedicellariae, i. 29S. 



174. 



Pelagornium, flowers of, i. 180. 



, l'-w in fcale, widely distri- 



, sterility of, ii. 7. 



buted, ii. Vjo. 



