PIMENTA. 



INDEX. 



TOOLE. 



471 



ii. 4 ; polydactylism in, ii. 14 : cross- 

 reversion in, ii. 35 ; hybrid, wildness of, 

 ii. 45 ; monstrous development of a pro- 

 boscis in, ii. 57; disappearance of tusks 

 in male under domestication, ii, 74 ; 

 solid hoofed, ii. 429 ; crosses of, ii. 93, 

 95 ; mutual fertility of all varieties of, 

 ii. 110 ; increased fertility by domesti- 

 cation, ii. Ill ; ill effects of close inter- 

 breeding in, ii. 121-122 ; influence of 

 selection on, ii. 198 ; prejudice against 

 certain colours in, ii. 210, 229, 33(5 ; 

 unconscious selection of, ii. 214 ; black 

 Yirginian, ii. 227, 336 ; similarity of the 

 best breeds of, ii. 241 ; change of form 

 in, ii. 279 ; effects of disuse of parts in, 

 ii. 299 ; ears of, ii. 301 ; correlations in, 

 ii. 327 ; white, buck-wheat injurious to, 

 ii. 337 ; tail of, grafted upon the bark, 

 ii. 369 ; extinction of the older races of, 

 ii. 426. 



PlMENTA, ii. 91. 



Pimpernel, ii. 190. 



Pine- apple, sterility and variability of the, 

 ii. 262. 



Pink, Chinese, 322. 



Pinks, bud-variation in, i. 381 ; improve- 

 ment of, ii. 216. 



Pinus pumilio x Mughus, and nana, varie- 

 ties of P. syhestris, i. 363. 



Pinus sylvestris, i. 363, ii. 310 ; hybrids 

 of, with P. nigricans, ii. 130. 



Piorry, on hereditary disease, ii. 7, 

 78. 



P/stacia lentiscus, ii. 274. 



Pistils, rudimentary, in cultivated plants, 

 ii. 316. 



Pistor, sterility of some mongrel pigeons, 

 i. 192 ; fertility of pigeons, ii. 112. 



Pisum arvense and sativum, i. 326. 



Pityriasis versicolor, inheritance of, ii. 

 79. 



Planchon, C, on a fossil vine, i. 332; 

 sterility of Jussisea grand/flura in 

 France, ii. 170. 



Plane tree, variety of the, i. 362. 



Plantigrade carnivora, general sterility 

 of the, in captivity, ii. 15 i. 



Plants, progress of cultivation of, i. 305- 

 312 ; cultivated, their geographical de- 

 rivation, i. 311 ; crossing of, ii. 98, 99, 

 127 ; comparative fertility of wild and 

 cultivated, ii. 112-113; self-impotent, 

 ii. 131-140 ; dimorphic and trimorphic, 

 ii. 132, 140 ; sterility of, from changed 

 conditions, ii. 163-165; from contabes- 

 cenceof anthers, ii. 165-166; from mon- 

 strosities, ii. 166-167 ; from doubling of 

 the flowers, ii. 167-168; from seedless 

 fruit, ii. 168 ; from excessive develop- 

 ment of vegetative organs, ii. 168-171; 

 influence of selection on, ii. 199-201 ; 



variation by selection, in useful parts 

 of, ii. 217-219; variability of, ii. 237 ; 

 variability of, induced by crossing, ii. 

 265 ; direct action of change of climate 

 on, ii. 277 ; change of period of vegeta- 

 tion in, ii. 304-1505 ; varieties of, suit- 

 able to different climates, ii. :-i06 ; cor- 

 related variability of, ii. 330-331 ; an- 

 tiquity of races of, ii. 429. 



Plasticity, inheritance of, ii. 241. 



Plateau, F., on the vision of amphibious 

 animals, ii. 223. 



Platessa flesus, ii. 53. 



Plato, notice of selection in breeding 

 dogs by, ii. 212. 



Plica po'lonica, ii. 276. 



Pliny, on the crossing of shepherd's dogs 

 with the wolf, i. 24 ; on Pyrrhus' breed 

 of cattle, ii. 202 ; on the estimation of 

 pigeons among the Romans, i. 205; 

 pears described by, ii. 215. 



Plum, i. 345-347; stones figured, i. 345; 

 varieties of the, i. 345-346, ii. 219 ; 

 bud-variation in the, i. 375 ; peculiar 

 disease of the, ii. 227 ; flower-buds of, 

 destroyed by bullfinches, ii. 232; pur- 

 ple-fruited, liable to certain diseases, 

 ii. 336. 



Plumage, inherited peculiarities of, in 

 pigeons, i 160-161; sexual pecu- 

 liarities of, in fowls, i. 251-255 



Plurality of races, Pouchefs views on, 

 i. 2. 



Poa, seeds of, used as food, i. 308 ; species 

 of, propagated by bulblets, ii. 170. 



Podolian cattle, i. 80. 



Pointers, modification of, i. 42 ; crossed 

 with the foxhound, ii 95. 



Pois sans parchemin, ii. 231. 



Poiteau, origin of Cytisus Adarni, i. 390 ; 

 origin of cultivated varieties of fruit- 

 trees, ii. 260. 



Polish fowl, i. 227, 250, 254, 256-257, 

 262 ; skull figured, i. 262 ; section of 

 skull figured, i. 263; development of 

 protuberance of skull, i. 250 ; furcula 

 figured, i. 268. 



Polish, or Himalayan rabbit, i. 108. 



Pollen, ii. 363-364 ; action of, ii. 108 ; in- 

 jurious action of, in some orchids, ii. 134- 

 135 ; resistance of, to injurious treat- 

 ment, ii. 164; prepotency of, ii. 187. 



Pollock, Sir F., transmission of variegated 

 leaves in Ballota nigra, i. 383 ; on local 

 tendency to variegation, ii. 274. 



Polyanthus, ii. 21. 



Polydactylism, inheritance of, ii. 12-16; 

 significance of, ii. 16-17. 



Polyplectron, i. 255. 



Ponies, most frequent on islands and 

 mountains, i. 52 ; Javanese, i. 53. 



Poole, Col., on striped Indian horses, i. 



