Ternate, Wallace at, i. 36, 68, 107, 108; volcanic eruption of 1849 in, 68; Wallace's paper on Natural Selection sent to Darwin from, i. 106, ii. 39 Tertiary Period, i. 159, 292, 294, 295 Thayer's theory of animal colouring, ii. 36 "Theories of Evolution," Poulton's, ii. 61 "Theory of Development and Heredity," Orr's, ii. 60 "---- of Natural Selection from a Mathematical Point of View," Bennett's, i. 253 "---- of Population," Spencer's, i. 124 Thiselton-Dyer, Sir W.T.: appreciation of Wallace by, i. 4; at Darwin-Wallace Jubilee, 122; paper on geographical distribution of plants by, ii. 90 ---- letters from: on Darwin Commemoration volume, ii. 91; on Sir F. Darwin's "Foundations" and the Darwin celebration, 92; on Evolution and the fundamental powers and properties of life, 95-8; asking Wallace to join Royal Society, 219, 220-1; on Romanes' charge of plagiarism, 236-7 Thompson, Prof. Silvanus P., signs petition for national memorial to Wallace, ii. 253 Thomson, Prof. J.A., ii. 12 (note) ---- Sir W. (Lord Kelvin), on age of world, i. 242, 250, 268, ii. 75 Thought transference (_see_ Telepathy) "Threading my Way," R.D. Owen's, ii. 225 Timor, birds of, i. 80, ii. 4; mammalia of, i. 133, ii. 4; fossils of, i. 138, 148, 290; Darwin receives honeycomb from, 143, 146; flora of, 237 Transmutation of species, i. 123, ii. 23 "Travels on the Amazon and Rio Negro," Wallace's, i, 30, 35 Trees, tropical, i. 86 Trimen, Mr., paper on mimetic butterflies by, i. 200, 201 Trimorphism in plants, i. 161, 202, 220 Tropical forests, Darwin's description of, i. 31-2; denizens of, 31 "---- Nature," Wallace's, ii. 11 Turner, Dr., orchids of, ii. 114 ---- Mr. H.H., signs petition for national memorial of Wallace, ii. 253 Tylor, E.B., "Early History of Mankind," i. 164; Wallace on, 165; "Anthropology," ii. 65 Tyndall, John, birth of, i. 5; and psychical research, ii. 198 U Uaupes, Indians of, i. 31; exploration of, i. 29 Unfit, segregation of, ii. 160-1, 246 United States, Wallace's lecturing tour in, ii. 14 "Unparalleled Discoveries of Mr. T.J.J. See, Account of," ii. 178 Utricularia, i. 284-5 V Vaccination, Wallace and, ii. 149, 202, 237, 240-1; Rev. H. Price Hughes on, 158; Frederic Myers and, 206 "Variation, Heredity, and Evolution," Lock's, ii. 84 ---- of birds, i. 162-3 "Variations of Animals and Plants under Domestication," Darwin's, i. 112, 189, 195, 197, 199, ii. 2 Variety, Wallace's differentiation of, from species, i. 91-2, 96, 97, 101, 115, 167 (note), 169, 173, 205, 210, 234, ii. 21, 62, 63, 70 Varley, C.F., i. 244 Vegetarianism, Wallace on, ii. 158 "Vestiges of the Natural History of Creation," i. 91, 92 (note) Victoria, Queen, approves of pension to Wallace, i. 315 "Vignettes from Nature," Grant Allen's, ii. 46 Vogt, Prof., i. 221 Volcanic eruptions and migration, Lyell's theory of, ii. 19 "Voyage of the _Beagle_," Darwin's, i. 31, 32, 34, ii. 2