INDEX. 



TUMOURS. 



489 



Thru?h, asserted reproduction of the ] 



tarsus in a, ii. 358. 

 T/iuja pendula or filifonnis, a variety of 



T. orientalis, i. 386. 

 Thuret, on the division of the zoospores 



of an alga, ii. 372. 

 Thwaites, G. H., on the cats of Ceylon, 



i. 48 ; on a twin seed of Fuchsia coc- 



cinea and fulgens, i. 426. 

 Tiburtius, experiments in rearing wild 



ducks, i. 292. 

 Tiger, rarely fertile in captivity, ii. 



133. 

 Tigridia conchifiora, bud- variation in, i. 



412. 

 Time, importance of, in the production 



of races, ii. 230. 

 Tinzmann, self-impotence in the potato, 



ii. 118. 

 Tissues, affinity of, for special organic 



substances, ii. 375. 

 Titmice, destructive to thin-shelled 



walnuts, i. 379 ; attacking nuts, ibid.; 



attacking peas, ii. 216. 

 Tobacco, crossing of varieties of, 



ii. 87; cultivation of, in Sweden, ii. i 



298. 

 Tobolsk, red-coloured cats of, i. 49. 

 Toes, relative length of, in fowls, i. 



272 ; development of fifth, in dogs, ii. 



309. 

 Tollet, Mr., his selection of cattle, ii. 



183. 

 Tomato, ii. 68. 



Tomes, inheritance of dental malforma- 

 tions, i. 452. 

 Tomtits. See Titmice. 

 Tongue, relation of, to the beak in 



pigeons, i. 77. 

 Tooth, occurrence of a molar, in place 



of an incisor, ii. 385. 

 " Torfschwein," i. 71. 

 Trail, R., on the union of half-tubers 



of different kinds of potatoes, i. 



420. 

 Trees, varieties of, suddenly pioduced, 



i. 384; weeping or pendulous, i. 385 ; 



fastigate or pyramidal, ibid. ; with 



variegated or changed foliage, ibid. ; 



early or late in leaf, i. 386 ; forest, 



non-application of selection to, ii. 



223. 

 "Trembleur" (pigeons), i. 153. 



Trembley, on reproduction in Hydra, 

 ii. 352. 



"Trevoltini" silkworms, i. 318, 319. 



Trichosanthes anguina, i. 383. 



Tricks, inheritance of, i. 450, 451. 



Trifolium minus and repens, ii. 147. 



Trimorphic plants, conditions of repro- 

 duction in, ii. 165-169. 



Tristram, H. B., selection of the drome- 

 dary, ii. 190. 



Triticum dicoccum, i. 337. 



Triticum monococcum, i. 337. 



Triticum spelta, i. 337. 



Triticum turgidum, i. 337. 



Triticum vulgare, wild in Asia, i. 330. 



Triton, breeding in the branchiferous 

 stage, ii. 379. 



" Trommel-Taube," i. 162. 



"Tronfo" pigeon, i. 151. 



Tropceolum, ii. 11. 



Tropccohim minus and m r 'jus, reversion 

 in hybrids of, i. 425. 



Troubetzkoy, Prince, experiments 

 with pear-trees at Moscow, ii. 297. 



Trousseau, Prof., pathological resem- 

 blance of twins, ii. 239. 



Trumpeter pigeon, i. 162; known in 

 1735, i. 217. 



Tscharner, H. A. de, graft-hybrid pro- 

 duced by inosculation in the vine, i. 

 419. 



Tschudi, on the naked Peruvian dog, 

 i. 24; extinct varieties of maize 

 from Peruvian tombs, i. 338, ii. 

 421. 



Tubers, bud-variation by, i. 409-411. 



Tuckerman, Mr., sterility of Carex 

 rigida, ii. 154. 



Tufted ducks, i. 295. 



Tulips, variability of, i. 394 ; bud-varia- 

 tion in, i. 411,412; influence of soil 

 in "breaking," i. 411. 



Tumbler pigeon, i. 156-161 ; short- 

 faced, figured, i. 160 ; skull figured, 

 i. 172 ; lower jaw figured, i. 173 ; 

 scapula and furculum figured, i. 176 ; 

 early known in India, i. 217 ; history 

 of, i. 219; sub-breeds of, i. 230; 

 young, unable to break the egg-shell, 

 ii. 211 ; probable further modification 

 of, ii. 229. 



" Tummler " (pigeons), i. 156. 



Tumours, ovarian, occurrence of hairs 



