[222] Greeks to Darwin, p. 229.
[223] November 7, 1875, More Letters, vol. I, p. 360.
[224] Descent, p. 61.
[225] In Life, vol. II, p. 187, from Life of Kingsley, vol. II, p. 171.
[226] To Hooker, April or May, 1859, Life, vol. I, p. 512.
[227] To Gray, October, 1865, Life, vol. I, p. 489.
[228] Life, vol. I, p. 82.
[229] Greeks to Darwin, p. 5.
[230] Science and the Modern World, p. 158.
[231] What Evolution is, p. 17.