intercourse with Wallace, [113];
action in respect to theory, [128], [129];
his first literary ambitions, [116];
difficulties of work caused by ill-health, [117], [118], [119];
his loss of appreciation for music and literature, and its cause, [134], [135];
later writings on Evolution, [141], [144];
his declining years, [147], [158], [159];
his death, [147];
present position of his theory of Natural Selection, [155], [156], [159]
Darwin, Erasmus, his independent conception of Lamarckism, [91], [92];