Luck, or Cunning, as the Main Means of Organic Modification

by Samuel Butler

[54a] Vol. I, 3rd ed., 1874, p. 141, and Problem I. 21.

[54b] “Mental Evolution in Animals,” pp. 177, 178. Nov., 1883.

[55a] “Mental Evolution in Animals,” p. 192.

[55b] Ibid. p. 195.

[55c] Ibid. p. 296. Nov., 1883.

[56a] “Mental Evolution in Animals,” p. 33. Nov., 1883.

[56b] Ibid., p. 116.

[56c] Ibid., p. 178.

[59a] “Evolution Old and New,” pp. 357, 358.

[60a] “Mental Evolution in Animals,” p. 159. Kegan Paul & Co., 1883.