Index 



Shrewsbury Grammar School, Darwin 

 and, i. 12, 15 



Sidgwick, Prof, and Mrs. H., tele- 

 pathic experiments by, ii. 199, 

 200 ; Wallace's remarks on, 200-1 



" Siege of the South Pole," Mill's, ii. 

 82 



Silk, George, i. 52, 87 ; Wallace's 

 friendship with, 10 ; walking tour 

 in Switzerland with Wallace, 35 



Sims, Mrs. (sister of A. R. Wallace), i. 

 30, 44, 56, 60, 62, 64, 85 



Thomas, i. 63, 73 



Singapore, Wallace at, i. 36 

 Slade, prosecution of, ii. 197 

 Sleeper, George W., ii. 98, 99, 100 

 Smedley, Mr. E., ii. 83, 100, 163, 175, 



215 



Smith, Dr. Edwin, Ii. 210 



" Social Environment and Moral Pro- 

 gress," Wallace's, ii. 104, 144-5, 

 250 



" Statics," Spencer's, i. 123, 150, 



ii. 143 



Socialism, Wallace's first lessons in, 

 and later views of, i. 15, 16, 

 ii. 139 et seq. ; " individualistic," 

 114 ; Wallace's definition of, 152 



Society for Psychical Research, found- 

 ation of, ii. 196 



" Sociology, Principles of," i. 126 



" Study of," Spencer's, i. 283 



Solar nebula, lecture by Sir R. Ball 

 on, ii. 174 



system, central position of, ii. 



171 



South America, fauna of, ii. 10 



Special creation, i. 189 (note), 190, 192, 

 ii. 23, 185 



Species, mutability of, i. 78, 137 ; law 

 of introduction of, 96, 101-2 ; 

 extinction of, 98. (See also Selec- 

 tion, natural) 



Spencer, Herbert, birth of, i. 5 ; and 

 Evolution, 122, 123 ; arguments 

 with Huxley on Evolution, 123 ; 

 sends Darwin a copy of his Essays, 

 124 ; suggests " survival of the 

 fittest " as alternative to " natural 



selection," 125, 171 ; Wallace's 

 relations with, 125 ; Darwin's ap- 

 proval of " survival of the fittest," 

 174 ; autobiography of, ii. 211 



Spencer, Herbert, letters from: on 

 " Origin of the Races of Man," 

 ii. 18 ; on theory of flight, 27-8 ; 

 on " Darwinism," 47 ; on Lord 

 Salisbury's view of Natural Selec- 

 tion, 59, 60, 65 ; on Land Nation- 

 alisation Society, 154 ; on " Pro- 

 gress and Poverty," etc., 154-5 



Spilosoma menthastri, i. 179 



Spiritualism, Wallace's belief in, Ii. 

 122, 167, 178, 181 et seq., 239-40 ; 

 Huxley on, 187; Lord Avebury 

 on, 212 



Spiritualists, Association of, ii. 198, 

 199 



Spontaneous generation, i. 274 



Spruce, Mr., i. 150, 161, 166, 232 



Stanley, Dean, at Linlathen, ii. 228 



Stephens' " Illustrations of British 

 Insects," i. 23 (note) 



Sterility, Natural Selection and, Mel- 

 dola on, ii. 41-2 



Stevens, Samuel, 1. 26, 48, 49, 54, 71, 

 72, 102, 105, 143 



Stewart, Prof. Balfour, and telepathy, 

 ii. 200 



Strahan, Dr. A., and Wallace memo- 

 rial, ii. 253 



Strang, Mr., chalk portrait of Wallace 

 by, ii. 224 



Strasburger, Prof. Eduard, receives 

 Darwin- Wallace Medal, i. 120 ; 

 tribute to Wallace, 120 ; on 

 Wallace's " Malay Archipelago," 

 ii, 231 



Stuart-Mentelth, C. G., ii. 160 



" Studies, Scientific and Social," Wal- 

 lace's, ii. 143, 147 



" Study of Variation, with regard to 

 Discontinuity in Origin of Spe- 

 cies," Bateson's, ii. 60-1 



" Subsidence and Elevation of Land," 

 Sir H. H. Howorth's, i. 277 



theory of, i. 132, 160, 212, 238, 



286, 309 



284 



