Index 



Survival of the fittest, i. 125, 171, 



174-5, ii. 59 (see also Selection, 



natural) 

 Sus papuensis, i. 161, 162 



scrota, i. 162 



Swinton, Mr. A. C, ii. 155 

 Synthetic philosophy, Spencer's, i. 1, 



123, 124 

 Switzerland, Wallace's visits to, i. 35, 



u. 204 



Telepathy, ii. 181, 186 et seq., 196, 199 



" Tendency of "Varieties to Depart In- 

 definitely from Original Type," 

 Wallace's, i. 109 ; loss of MS., 127, 

 ii. 7 



Temate, Wallace at, i. 36, 68, 107, 

 108 ; volcanic eruption of 1849 

 in, 68 ; Wallace's paper on Natu- 

 ral 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 Here- 

 dity," 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. : apprecia- 

 tion of Wallace by, i. 4 ; at Dar- 

 win-Wallace Jubilee, 122 ; paper 

 on geographical distribution of 

 plants by, ii. 90 



letters from : on Darwin Com- 

 memoration voluime, 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 honey- 

 comb from, 143, 146 ; fiora 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 butter- 

 flies 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 Man- 

 kind," i. 164 ; Wallace on, 165 ; 

 " Anthropology," ii. 65 



Tyndall, John, birth of, i. 5 ; and psy- 

 chical research, ii. 198 



U 



Uaup^s, Indians of, i. 31 ; explora- 

 tion 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 



Vaccination, Wallace and, ii. 149, 

 202, 237, 240-1 ; Rev. H. Price 

 Hughes on, 158 ; Frederic Myers 

 and, 206 



285 



