448 



D0MBRAIN 



INDEX 



EATON. 



in, ii. 301 ; rejection of bones of 

 game by, ii. 303 ; inheritance of ru- 

 diments of limbs in, ii. 315 ; develop- 

 ment of fifth toe in, ii. 317 ; hairless, de- 

 ficiency of teeth in, ii. 326 ; short-faced, 

 teeth of, ii. 345; probable analogous 

 variation in, ii. 349 ; extinction of 

 breeds of, ii. 425. 

 Dombrain, H. H., on the auricula, ii. 



346-347. 

 Domestication, essential points in, ii. 



405-406 ; favourable to crossing, ii. 109- 

 110; fertility increased by, ii. 111-113, 



174. 



Domesticated animals, origin of, ii. 160- 

 161 ; occasional sterility of, under 

 changed conditions, ii. 161-162. 



Donders, Dr., hereditary hypermetropia, 



ii. 8. 



Dorking fowl, i. 227, 261 ; furcula of, 

 figured, i. 268. 



Dormouse, ii. 152. 



Double flowers, ii. 167-168, 171-172 ; pro- 

 duced by selection, ii. 200. 



Doubleday, H., cultivation of the filbert 

 pine strawberry, i. 354. 



Douglas, J., crossing of white and black 

 game-fowls, ii. 92. 



Downing, Mr., wild varieties of the 

 hickory, i. 310 ; peaches and nectarines 

 from seed, i. 339-340 ; origin of the 

 Boston nectarine, i. 340 ; American 

 varieties of the peach, i. 343 ; North 

 American apricot, i. 344 ; varieties of 

 the plum, i. 346 ; origin and varieties 

 of the cherry, i. 347-348 ; " twin clus- 

 ter pippins/' i. 349; varieties of the 

 apple, i. 350 ; on strawberries, i. 351, 

 353 ; fruit of the wild gooseberry, i. 

 355 ; effects of grafting upon the seed, 

 ii. 26 ; diseases of plum and peach 

 trees, ii. 227-228 ; injury done to stone 

 fruit in America by the " weevil," ii. 

 231 ; grafts of the plum and peach, ii. 

 259 ; wild varieties of pears, ii. 260 ; 

 varieties of fruit-trees suitable to differ- 

 ent climates, ii. 306. 



Drdba sylvestris, ii. 163. 



Dragon, pigeon, i. 139, 141. 



" Drawer" (pigeon), i. 156. 



Drinking, effects of, in different climates, 



ii. 289. 

 Dromedary, selection of, ii. 205-206. 

 Druce, Mr., inter-breeding of pigs, ii. 121. 



Du Chaillu, fruit-trees in West Africa, i. 

 309. 



Duchesne on Fragaria vesca, i. 351, 352, 

 353. 



Dufour, Leon, on Cetidomyia and Miso- 



campus, i. 5. 

 Duck, musk, retention of perching habit 



by the, i. 182 ; feral hybrid of, i. 190. 



Duck, penguin, hybrid of, with Egyptian 

 goose, ii. 68. 



Duck, wild, difficulty of rearing, ii. 233 ; 

 effects of domestication on, ii. 278. 



Ducks, breeds of, i. 276-277 ; origin of, i. 

 277 ; history of, ibid. ; wild, easily tamed, 

 i. 278-279 ; fertility of breeds of, when 

 crossed, i. 279; with the plumage of 

 Anas hoschas, i. 280 ; Malayan penguin, 

 identical in plumage with English, i. 

 280 ; characters of the breeds of, i. 281- 

 284 ; eggs of, i. 281 ; effects of use and 

 disuse in, i. 284-286, ii. 298 ; feral, in 

 Norfolk, i. 190 ; Aylesbury, inheritance 

 of early hatching by, ii. 25 ; reversion 

 in, produced by crossing, ii. 40 ; wild- 

 ness of half-bred wild, ii. 45 ; hybrids 

 of, with the musk duck, ii. 45-46 ; as- 

 sumption of male plumage by, ii. 51 ; 

 crossing of Labrador and penguin, ii. 

 97 ; increased fertility of, by domesti- 

 cation, ii. 112 ; general fertility of, in 

 confinement, ii. 157 ; increase of size 

 of, by care in breeding, ii. 199 ; change 

 produced by domestication in, ii. 262. 



Dumeril, Aug., breeding of Siredon in 

 the branchiferous stage, ii. 384. 



DuN-coloured horses, origin of, i. 59. 



Dureau de la Malle, feral pigs in Louisi- 

 ana, ii. 33 ; feral fowls in Africa, ibid. ; 

 bud-variation in the pear, i. 376 ; pro- 

 duction of mules among the Komans, 

 ii. 110. 



Dusicyon sylvestris, i. 23. 

 Dutch rabbit, i. 107. 

 Dutch roller pigeon, i. 151. 

 Dutrochet, pelorism in the laburnum, ii. 



346. 

 Duval, growth of pears in woods in 



France, ii. 260. 



DuvAL-Jouve, on Leersia oryzoides, ii. 

 91. 



Duvernoy, self-impotence in Lilium can- 



didum, ii. 137. 

 Dzierzon, variability in the characters 



and habits of bees, i. 298. 



Earle, Dr., on colour-blindness, ii. 72, 

 328. 



Ears, of fancy rabbits, i. 106 ; deficiency 

 of, in breeds of rabbits, i. 108 ; rudi- 

 mentary, in Chinese sheep, ii. 315 ; 

 drooping, ii. 301 ; fusion of, ii. 341. 



Eaton, J. M., on fancy pigeons, i. 148, 

 153 ; variability of characters in breeds 

 of pigeons, i. 161 ; reversion of crossed 

 pigeons to coloration of Columba Mvia, 

 i. 198 ; on pigeon-fancying, i. 206, 215- 

 216; on tumbler-pigeons, i. 209, ii. 242 ; 

 carrier-pigeon, i. 211 ; effects of inter- 

 breeding on pigeons, ii. 126; properties 

 of pigeons, ii. 197-198; death of short- 



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