The origin of species by means of natural selection, or, The preservation of favoured races in the struggle for life / by Charles Darwin.

Date:
1895
Catalogue details

Licence: Public Domain Mark

Credit: The origin of species by means of natural selection, or, The preservation of favoured races in the struggle for life / by Charles Darwin. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    T. Tail of giraffe, 147. of aquatic animals, 147. , prehensile, 176. , rudimentary, 376. Tanais, dimorphic, 33. Tarsi, deficient, 101 Tausch, Dr., on umbellifene, 162. Teeth and hair correlated, 107. , rudimentary, embryonic calf, 373, 395. Tegetmeier, Mr., on cells of bees, 207, 211. Temminck, on distribution aiding classification, 346. Tendrils, their development, 183. Thompson, Sir W., on the age of the habitable world, 268. , on the consolidation of the crust of the earth, 384. Thouin, on grafts, 230. Thrush, aquatic species of, 133. , mocking, of the Galapagos, 335. , young of, spotted, 364. , nest of, 219. Thuret, M., on crossed fuci, 228. Thwaites, Mr., on acclimatisation, 105. Thylacinus, 351. Tierra del Fuego, dogs of, 197. , plants of, 321. Timber, drift, 306. Time, lapse of, 249. by itself not causing modifica- tion, 75. Titmouse, 132. Toads on islands, 329. Tobacco, crossed varieties of, 242. Tomes, Mr., on the distribution of bats, 330. Transitions in varieties rare, 125. Traquair, Dr., on flat-fish, 175. Trautscliold, on intermediate' varie- ties, 258. Trees on islands belong to peculiar orders, 328. with separated sexes, 73. Trifolium pratense, 53, 69. incarnatum, 69. Trigonia, 278. Trilobites, 268. , sudden extinction of, 278. Trimen, Mr., on imitating-insects, 354. Trimorphism in plants, 33, 236. Troglodytes, 219. Tuco-tuco, blind, 102. Tumbler-pigeons, habits of, heredi- tary, 196. Tumbler, young of, 368. Turkey-cock, tuft of hair on breast, 65. , naked skin on head, 148. , young of, instinctively wild, 197. Turnip and cabbage, analogous varia- tions of, 117. Type, unity of, 156. Types, succession of, in same areas, ‘291. Typotherium, 283. U. Udders enlarged by use, 8. , rudimentary, 373. Ulex, young leaves of, 364. Umbellifene, flowers and seeds of, 108. , outer and inner florets of, 161. Unity of type, 156. Uria lacrymans, 67. Use, effects of, under domestication, 8. , effects of, in a state of nature, 100. Utility, how far important in the construction of each part, 149. V. Valenciennes, on fresh-water fish, 323. Variability of mongrels and hybrids, 242. Variation under domestication, 5. caused by reproductive system being affected by conditions of life, 6, 7. under nature, 30. , laws of, 98. , correlated, 8, 106, 149. Variations appear at corresponding ages, 10, 62. analogous in distinct species, 116. Varieties, natural, 30. , struggle between, 55. , domestic, extinction of, 80. , transitional, rarity of, 125.