Chapter 18

at Wallace's funeral, ii. 252; and the Wallace memorial in Westminster Abbey, 254

Scott's "Antarctic Voyage," ii. 82

Sedgwick, Prof., and Darwin, i. 17, 18; attacks Darwin at Cambridge Philosophical Society, 142

See, T.J.J., ii. 179-80

Seeman, Berthold, i. 199, 201, 210, 211

Segregation of the unfit, Wallace on, ii. 160-1, 246

Selection, domestic, i. 130, 134, 136, 160, 161, 167, 181, 183, 186, 189 (note), 192, 208, 215, 226, 228, 231, 257, 299

---- natural, theory of, i. 155, 156, 170 _et seq._, 195 _et seq._, 218, 240, 267, 298, 301, ii. 16-17, 63, 75, 94, 96, 98, 101, 150; discovery of, i. 2, 89-126; anticipations of, 116, 142, 176; Spencer's alternative term for, 125, 171; Lord Salisbury's conception of, ii. 59, 60, 65; Neo-Lamarckians and, 64

---- physiological, Romanes' theory of, i. 218, ii. 36, 49-50, 63 _et seq._, 235-7

---- sexual, i. 157, 159, 177, 179, 182, 185-6, 194, 199, 203, 204, 212 _et seq._, 216-17, 220, 224-5, 227 _et seq._, 256, 261, 298, 299

Self-fertilisation, i. 169, 297, ii. 46

"Shall we have Common Sense?" Sleeper's, ii. 98, 99

Sharpe, Mr. J.W., reminiscences of Wallace, ii. 107-9

Shells, Lyell on, ii. 24

Shipley, Dr. A.E., and Wallace medallion in Westminster Abbey, ii. 253

Shrewsbury Grammar School, Darwin and, i. 12, 15

Sidgwick, Prof, and Mrs. H., telepathic 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 Progress," 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, foundation 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_ Selection, 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 approval of "survival of the fittest," 174; autobiography of, ii. 211

---- 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 Selection, 59, 60, 65; on Land Nationalisation Society, 154; on "Progress 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, Meldola on, ii. 41-2

Stevens, Samuel, i. 26, 48, 49, 54, 71, 72, 102, 105, 143

Stewart, Prof. Balfour, and telepathy, ii. 200

Strahan, Dr. A., and Wallace memorial, 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-Menteith, C.G., ii. 160

"Studies, Scientific and Social," Wallace's, ii. 143, 147

"Study of Variation, with regard to Discontinuity in Origin of Species," 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

Survival of the fittest, i. 125, 171, 174-5, ii. 59 (_see also_ Selection, natural)

Sus papuensis, i. 161, 162

---- scrofa, i. 162

Swinton, Mr. A.C., ii. 155

Synthetic philosophy, Spencer's, i. 1, 123, 124

Switzerland, Wallace's visits to, i. 35, ii. 204

T

Telepathy, ii. 181, 186 _et seq._, 196, 199

"Tendency of Varieties to Depart Indefinitely from Original Type," Wallace's, i. 109; loss of MS., 127, ii. 7

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,