INSTINCTS. 



INDEX. 



KIDNEY. 



459 



■ 



186-187 ; monstrosities in, ii. 269, 

 -391. 



Instincts, defective, of silkworms, i. 304. 



Interbreeding, close, ill effects of, ii. 114- 

 131, 175. 



Intercrossing, of species, as a cause of 

 variation, i. 188 ; natural, of plants, i. 

 336 ; of species of Canidse and breeds of 

 dogs, i. 31-33 ; of domestic and wild 

 cats, i. 44-45 ; of breeds of pigs, i. 71, 

 78 ; of cattle, i. 83 ; of varieties of cab- 

 bage, i. 324 ; of peas, i. 326, 329-330 ; 

 of varieties of orange, i. 336 ; of species 

 of strawberries, i. 351-352 ; of Cucur- 

 bitm, i. 357-358 ; of flowering plants, i. 

 364 ; of pansies, i. 368. 



Interdigital pits, in goats, i. 102. 



Intermarriages, close, ii. 122-123. 



Intestines, elongation of, in pigs, i. 73 ; 

 relative measurements of parts of, in 

 goats, i. 102; effects of changed diet 

 on, ii. 302. 



Ipomcea purpurea, ii. 128. 



Ireland, remains of Bos frontosus and 

 longifrons found in, i. 81. 



Iris, hereditary absence of the, ii. 9 ; 

 hereditary peculiarities of colour of the, 

 ii. 9-10. 



Irish, ancient, selection practised by the, 

 ii. 203. 



Iron period, in Europe, dog of, i. 18. 



Islands, oceanic, scarcity of useful plants 

 on, i. 311. 



Islay, pigeons of, i. 183. 



Isolation, effect of, in favour of selection, 

 ii. 233-234. 



Italy, vine growing in, during the 

 bronze period, i. 332. 



Ivy, sterility of, in the north of Europe, 

 ii. 170. 



Jack, Mr., effect of foreign pollen on 



grapes, i. 400. 

 Jackal, i. 24, 27, 30 ; hybrids of, with 



the dog, i. 32 ; prepotency of, over the 



dog, ii. 67. 

 Jacobin pigeon, i. 154, 208. 

 Jacquemet-Bonnefort, on the mulberry, 



i. 334. 

 Jaguar, with crooked legs, i. 17. 

 Jamaica, feral dogs of, i. 28 ; feral pigs 



of, i. 77 ; feral rabbits of, i. 112. 

 Japan, horses of, i. 53. 

 Japanese pig (figured), i. 69. 

 Jardine, Sir W., crossing of domestic and 



wild cats, i. 44. 

 Jarves, J., silkworm in the Sandwich 



islands,!. 301. 

 Java, Fantail pigeon in, i. 148. 

 Javanese ponies, i. 53, 59. 

 Jemmy Button, i. 309. 

 Jenyns, L., whiteness of ganders, i. 288 ; 



sunfish-like variety of the goldfish, i. 



297. 

 Jerdon, J. C, number of eggs laid by the 



pea-hen, ii. 112 ; origin of domestic 



fowl, i. 237. 

 Jersey, arborescent cabbages of, i. 323. 

 Jessamine, i. 394. 

 Jeitteles, Hungarian sheep-dogs, i. 24 ; 



crossing of domestic and wild cats, i. 44. 

 John, King, importation of stallions from 



Flanders by, ii. 203. 

 Johnson, D., occurrence of stripes on 



young wild pigs in India, i. 76. 

 Jordan, A., on Vibert's experiments on 



the vine, i. 332 ; origin of" varieties of 



the apple, i. 350 ; varieties of pears 



found wild in woods, ii. 260. 

 Jourdan, parthenogenesis in the silk- 



moth, ii. 364. 

 Juan de Nova, wild dogs on, i. 27. 

 Juan Fernandez, dumb dogs on, i. 27. 

 Juglans regia, i. 356-357. 

 Jukes, Prof., origin of the Newfoundland 



dog, i. 42. 

 Julien, Stanislas, early domestication of 



pigs in China, i. 68 ; antiquity of the 



domestication of the silk - worm in 



China, i. 300. 

 Jumpers, a breed of fowls, i. 230. 

 Juniper, variations of the, i. 361, 364. 

 Juniperus sueciea, i. 361. 

 Jussixa grandiflora, ii. 170. 

 Jussieu, A. de, structure of the pappus in 



Carthamus, ii. 316. 



Kail, Scotch, reversion in, ii. 32. 



" Kala-par" pigeon, i. 142. 



Kales, i. 323. 



Kalm, P., on maize, i. 322, ii. 307 ; in- 

 troduction of wheat into Canada, i. 

 315 ; sterility of trees growing in 

 marshes and dense woods, ii. 170. 



" Kalmi Lotan," tumbler pigeon, i. 151. 



Kane, Dr., on Esquimaux dogs, i. 21. 



Karakool sheep, i. 98. 



Karkeek, on inheritance in the horse, 

 ii. 10. 



" Karmeliten Taube," i. 156. 



Karsten on Pulex penetrans, ii. 275. 



Kattywar horses, i. 58. 



Keeley, K., pelorism in Galedbdolon 

 luteum, ii. 59. 



Kerner on the culture of Alpine plants, 

 ii. 163. 



Kestrel, breeding in captivity, ii. 154. 



" Khandesi," i. 141. 



Khang-hi, selection of a variety of rice 

 by, ii. 205. 



Kiang, ii. 43. 



Kidd, on the canary bird, i. 77, ii. 275. 



Kidney Bean, i. 371 ; varieties of, ii. 

 256, 275. 



