[301] Ibid. p. 271.
[302] "Intellectual System of the Universe," vol. i. pp. 223-4.
[303] Todd, Bowman, and Beale, "Physiological Anatomy and Physiology of Man," p. 25.
[304] "Habit and Intelligence," vol. ii. p. 5.
[305] Ibid. p. 8.
[306] Ibid. p. 5.
[307] Ibid. pp. 6, 7.
[308] "On Natural Selection," p. 360.
[309] "Genesis of Species," p. 294.
[310] "Habit and Intelligence," vol. ii. p. 5.