

472 



POPLAR, 



INDEX. 



QUATREFAGES. 



58 59 ; on the young of Asinus indicus, 

 ii. 43. ? 



Poplar, Lombardy, i. 361. 



Poppig, on Cuban wild dogs, i. 27. 



Poppy, found in the Swiss lake-dwellings 



I 



i. 317, 319; with the stamens con- 

 verted into pistils, i. 365 ; differences 

 of the, m different parts of India, ii. 

 165; monstrous, fertility of, ii. 166; 

 black-seeded, antiquity of, ii. 429. 

 Porcupine, breeding of, in captivity, ii 

 152. J ' ' 



Porcupine family, ii, 4, 76. 



Porphyrio, breedmg of a species of, in 

 captivity, ii. 156. 



Portal, on a peculiar hereditary affection 

 of the eye, ii. 9. 



Porto Santo, feral rabbits of, i. 112. 



Potamochoerus penicillatus, ii. 150. 



Potato, i. 330-331; bud- variation by 

 tubers in the, i. 384-385; graft-hybrid 

 of, by union of half-tubers, i. 395 ; in- 

 dividual self-impotence in the, ii. 137 ; 

 sterility of, ii. 169 ; advantage of change 

 of soil to the, ii. 146 ; relation of tubers 

 and flowers in the. ii. 343. 



Potato, sweet, sterility of the, in China, 

 ii. 169; varieties of the, suited to dif- 

 ferent climates, ii. 309. 



Pouchet, M., his views on plurality of 

 races, i. 2. 



Pouter pigeons, i. 137-139; furcula 

 figured, i. 167; history of, i. 207. 



Powis, Lord, experiments in crossing 

 humped and English cattle, i. 83, ii. 45. 



Poynter, Mr., on a graft-hybrid rose, i. 

 396. 



Prairie wolf, i. 22. 



Precocity of highly-improved breeds, ii. 

 321. 



Prepotency of pollen, ii. 187. 



Prepotency of transmission of character, 

 ii. 65, 174 ; in the Austrian emperors 

 and some "Roman families, ii. 65 ; 

 in cattle, 65-66 ; in sheep, 66 ; in cats, 

 ibid.; in pigeons, 66-67; in fowls, 67; 

 in plants, ibid. ; in a variety of the 

 pumpkin, ii. 358 ; in the jackal over the 

 dog, ibid. ; in the ass over the horse, 

 ibid. ; in the pheasant over the fowl, 



■ 68; in the penguin duck over the 

 Egyptian goose, ibid. ; discussion of the 

 phenomena of, 69-71. 



Prescott, Mr., on the earliest known 

 European flower-garden, ii. 217. 



Pressure, mechanical, a cause of modifi- 

 cation, ii. 344-345. 



Prevost and Dumas, on the employment 

 of several spermatozoids to fertilise one 



ovule, ii. 363. 

 Price, Mr., variations in the structure of 

 the feet in horses, i. 50. 



Prichard, Dr., on polydactylism in the 

 negro, ii. 14 ; on the Lambert family, 

 ii. 77 ; on an albino negro, ii. 229 ; on 

 Plica polonica, ii. 276. 



Primrose, ii. 21 ; double, rendered single 

 by transplantation, ii. 167. 



Primula, intercrossing of species of, i. 

 336; contabescence in, ii. 166; hose 

 and hose, i. 365 ; with coloured calyces, 

 sterility of, ii. 166. 



Primula sinensis, reciprocally dimorphic, 



11. lOiU. 



Primula veris, ii. 21, 109, 182. 

 Primula vulgaris, ii. 21, 109. 

 Prince, Mr., on the intercrossing of straw- 

 berries, i. 352. 



Procyon, sterility of, in captivity, ii. 152. 



Prolificacy, increased by domestication, 

 ii. 174. 



Propagation, rapidity of, favourable to 



selection, ii. 297. 

 Protozoa, reproduction of the, ii. 376. 

 Prunus armeniaca, i. 344-345. 

 Prunus avium, i. 347. 

 Prunus cerasus, i. 347, 375. 

 Prunus domestica, i. 345. 

 Prunus insititia, i. 345-347. 

 Prunus spinosa, i. 345. 

 Prussia, wild horses in, i. 60. 

 Psittacus erithacus, ii. 155. 

 Psittacus macoa, ii. 155. 

 Psophia, general sterility of, in captivity, 



ii. 157. 

 Ptarmigan fowls, i. 228. 



Pulex penetrans, ii. 275. 



Pumpkins, i. 357. 



Puno ponies of the Cordillera, i. 52. 



Purser, Mr. on Cytisus Adami, i. 389. 



Pusey, Mr., preference of hares and rab- 

 bits for common rye, ii. 232. 



Putsche and Vertuch, varieties of the 

 potato, i. 330. 



Puvis, effects of foreign pollen on apples, 

 i. 401 ; supposed non-variability of mo 

 notypic genera, ii. 266. 



Pyrrhula vulgaris, ii. 232 ; assumption of 

 the hen-plumage by the male, in con- 

 finement, ii. 158. 



Pyrrhus, his breed of cattle, ii. 202. 



Pyrus, iastigate Chinese species of, ii. 

 277. 



Pyrus acerba, i. 348. 



Pyrus aucuparia, ii. 230. 



Pyrus communis, i. 350, 376. 



Pyrus malus, i. 348, 376. 



Pyrus paradisiaca, i. 348. 



Pyrus przecox, i. 348. 



Quagga, effect of fecundation by, on the 

 subsequent progeny of a mare, i. 403- 

 404. 



Quatrefages, A. de, on the burrowing of 



