theory of animal heat, 35;
  and Romanes, 36 et seq., 49 et seq.;
  on ferns, 40;
  on sterility and Natural Selection, 41 et seq.;
  admitted to Royal Society, 55, 56, 221, 222;
  on “discontinuous variation,” 62-3;
  theory of mouth-gesture as a factor in origin of language, 65;
  on non-heredity of acquired characters, 70;
  his last public lecture, 87, 222-3;
  two of his works translated into Japanese, 100;
  home life, 103-138;
  domesticity of, 104;
  skill at chess, 107;
  Examiner in Physiography at South Kensington, 109;
  as housebuilder, 110, 111, 119-120;
  honours from scientific societies, 113;
  enthusiasm for orchids, 114;
  his method of writing, 120-1, 243;
  and psychical research, 122, 167, 181-215, 239-40;
  daily routine, 123-4;
  sense of humour, 125-6, 132, 133, 134, 226, 227, 228;
  receives the Order of Merit, 127-9;
  his Sarawak spider, 131;
  failing health, 135 et seq.;
  death, 138, 252;
  funeral, 252;
  memorial in Westminster Abbey, 253-5;
  lists of writings, 257
——­ ——­ ——­ letters to his mother:  announcing arrival at Singapore,
    i. 47;
  describing work at Singapore, 48;
  on Malacca and missionaries, 49;
  on his collections and visit to Rajah Brooke, 51;
  on the Rajah, 59;
  on correspondence from Darwin and Hooker, and his Aru collection, 71;
  on plans for collecting at Java, and impending return to England, 83

——­ ——­ ——­ letter to his wife, sending plants from Furka Pass, ii. 115

——­ ——­ ——­ letters to his son, Mr. W.G.  Wallace:  on building of house
    at Parkstone, ii. 111-13;
  on purchase of land at Broadstone and garden plans, 117-18;
  enclosing ground plan of house and describing progress, 118-20;
  on “Man’s Place in the Universe,” and Spiritualism, 121-2;
  requesting revision of “Mars,” 122;
  on forthcoming lecture at the Royal Institution, and conferment of Order
     of Merit, 127-9;
  on discovery of a rare moth and beetles in root of an orchid, 129-30;
  on the railway strike, 163-4

——­ ——­ ——­ letters to his daughter Violet:  on “victims of
    Landlordism,” ii. 113;
  on “Freeland” and “Looking Backward,” 114;
  on orchid growing, 114;
  on use of a wagging tail, 115-16;
  on “Maha Bharata,” 116;
  on eight hours’ movement, 156

——­ ——­ ——­ letter to Lord Avebury, on Bill for bird preservation,
    i. 162

——­ ——­ ——­ letters to Sir W.F.  Barrett: 
  on the nebular hypothesis, ii. 174;
  on Mars, 176;
  on experiments with sensitives and on prosecution of Slade, 197;
  on Dr. Carpenter, 198;
  regretting inability to attend Dublin meeting of British Association,
    199;
  on the advocacy of vaccination, 206;
  on dowsing, 206-8;
  on presidency of Psychical Research Society, 208;
  on “Creative Thought” and on ministry of angels, 213;
  explaining his criticisms of “Creative Thought,” 214-15