reviews Origin of Species, [136], [137];
reply to Bishop of Oxford, [138];
defence of Darwinism, [140];
on Darwin's death, [147], [148];
on Lyell's death, [80]
Hybridity, Lyell's discussion on, [65], [103]
Hypotheses of Creation, twofold character of, [5]-[8]
Ideas v. Actions, Wallace on, [4]
Independent discovery of Natural Selection by Wallace, [113];
Darwin's letter on, [113]