[451] See Murphy, "Habit and Intelligence," vol. ii. p. 157; "Scientific Basis of Faith," pp. 75, 76; J. S. Mill, "Logic," vol. ii. ch. xxii. § 1.

[452] "Logic," bk. iii. ch. xvi. See also McCosh, "Intuitions," pp. 275-7.

[453] "Scientific Basis of Faith," p. 79.

[454] "Principles of Science," vol. ii. p. 465.

[455] Murphy, "Scientific Basis of Faith," pp. 80 and 49-51; Jevons, "Principles of Science," vol. ii. p. 438.

[456] Grove, "Correlation and Conservation of Forces," p. 193.

[457] "First Principles," chs. xiii. and xiv.

[458] Wallace, "On Natural Selection," p. 266.

[459] "Positive Philosophy," vol. i. p. 153-156.

[460] "Fragments of Science," p. 64.