470 



NARYAEZ. 



INDEX. 



NEWPOKT. 



Narvaez, on the cultivation of native 

 plants in Florida, i. 329. 



Nasua, sterility of, in captivity, ii. 

 134. 



" Natas," or Niatas, a South American 

 breed of cattle, i. 92-94. 



Nathusius, H. von, on striped horses, i. 

 62 ; on the pigs of the Swiss lake- 

 dwellings, i. 71 ; on the races of 

 pigs, i. 68-72 ; convergence of cha- 

 racter in highly-bred pigs, i. 76, ii. 

 227 ; causes of changes in the form 

 of the pig's skull, i. 75, 76 ; changes 

 in breeds of pigs by crossing, i. 82 ; 

 change of form in the pig, ii. 269 ; 

 effects of disuse of parts in the pig, 

 ii. 289; period of gestation in the 

 pig, i. 77 ; appendages to the jaw 

 in pigs, i. 79 ; on Sus pliciceps, i. 72 ; 

 period of gestation in sheep, i. 101 ; 

 on Niata cattle, i. 93; on short- 

 horn cattle, ii. 96 ; on interbreeding, 

 ii. 95 ; in the sheep, ii. 98 ; in pigs, 

 ii. 101 ; unconscious selection in cattle 

 and pigs, ii. 1 98 ; variability of highly- 

 selected races, ii. 225. 



Sxio, P., on the Bizzarria orange, i. 

 417. 



Natural selection, its general princi- 

 ples, i. 2-14. 



Nature, sense in which the term is 

 employed, i. 6. 



Naudin, supposed rules of transmission 

 in crossing plants, ii. 43 ; on the 

 nature of hybrids, ii. 23, 24 ; essences 

 of the species in hybrids, ii. 382, 

 395 ; reversion of hybrids, ii. 9, 23, 

 24 ; reversion in flowers by stripes 

 and blotches, ii. 11 ; hybrids of Lin- 

 aria vulgaris and purpurea, ii. 72 ; 

 pelorism in Linaria, ii. 32, 38 ; 

 crossing of peloric Linaria with the 

 normal form, ii. 46 ; variability in 

 Datura, ii. 254; hybrids of Datura 

 Iwvis and stramonium, i. 425 ; pre- 

 potency of transmission of Datura 

 stramonium when crossed, ii. 43 ; on 

 the pollen of Mirabilis and of hybrids, 

 i. 415 ; fertilisation of Mirabilisi, ii. 

 356 ; cultivated Cucurbitaceae, i. 380, 

 384, ii. 86 ; rudimentary tendrils in 

 gourds, ii. 306; dwarf Cucurbita;, ii. 

 324 ; relation between the size and 

 number of the fruit in Cucurbita 



pepo, ii. 336 ; analogous variation in 

 Cucurbita:, ii. 341 ; acclimatisation 

 of Cucurbitaceae, ii. 304 ; production 

 of fruit by sterile hybrid Cucurbi- 

 taceae, ii. 156 ; on the melon, i. 383, 

 ii. 86, 264 ; incapacity of the cucum- 

 ber to cross with other species, i. 382. 



Nectarine, i. 357-365 ; derived from 

 the peach, i. 357, 360-364 ; hybrids 

 of, i. 360 ; persistency of characters 

 in seedling, ibid.; origin of, i. 361 j 

 produced on peach-trees, i. 361, 362 ; 

 producing peaches, i. 361 ; variation 

 in, i. 363, 364 ; bud-variation in, i. 

 398 ; glands in the leaves of the, ii. 

 217 ; analogous variation in, ii. 341. 



Nectary, variations of, in pansies, i. 

 393. 



Nees, on changes in the odour of plants, 

 ii. 264. 



" Negro " cat, i. 48. 



Negroes, polydactylism in, i. 548 ; 

 selection of cattle practised bv, ii. 

 191. 



Neolithic period, domestication of 

 Bos longifrons and primigenius in 

 the, i. 84; cattle of the, distinct 

 from the original species, i. 90 ; do- 

 mestic goat in the, i. 105 ; cereals of 

 the, i. 334. 



Nerve, optic, atrophy of the, ii. 287. 



Neubert, potato-grafting, i. 422. 



Neumeister, on the Dutch and German 

 pouter pigeons, i. 145 ; on the Jaco- 

 bin pigeon, i. 162 ; duplication of 

 the middle flight feather in pigeons, 

 i. 167 ; on a peculiarly coloured 

 breed of pigeons, " Staarhalsige 

 Taube," i. 169; fertility of hybrid 

 pigeons, i. 201 ; mongrels of the 

 trumpeter pigeon, ii. 42 ; period of 

 perfect plumage in pigeons, ii. 53 ; 

 advantage of crossing pigeons, ii. 106. 



Neuralgia, hereditary, ii. 55. 



New Zealand, feral cats of, i. 49 ; 

 cultivated plants of, i. 328. 



Newfoundland dog, modification of, 

 in England, i. 44. 



Newman, E., sterility of Sphingida; 

 under certain conditions, ii. 141. 



Newport, G., non-copulation of Va- 

 nessa; in confinement, ii. 141 ; fer- 

 tilisation of the ovule in batrachia, 

 ii. 356. 



