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,
    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