[194] See Boston Medical and Surgical Journal for April 5, 1866, vol. lxxiv. p. 189.
[195] "Principles of Biology," vol. i. p. 180.
[196] See the "Proceedings of the Boston Society of Natural History," vol. xi. June 5, 1867.
[197] "Habit and Intelligence," vol. i. p. 75.
[198] Ibid. p. 112.
[199] Ibid. p. 170.
[200] "Habit and Intelligence," vol. i. p. 229.
[201] It is hardly necessary to say that the Author does not mean that there is, in addition to a real objective crystal, another real, objective separate thing beside it, namely the "force" directing it. All that is meant is that the action of the crystal in crystallizing must be ideally separated from the crystal itself, not that it is really separate.
[202] "Origin of Species," 5th edition, 1869, p. 577.
[203] Vol. ii. p. 122.