[236:8] Haeckel: Riddle of the Universe. Translation by McCabe, p. 254.
The best systematic presentation of "energetics" is to be found in Ostwald's Vorlesungen über Natur-Philosophie. Herbert Spencer, in his well-known First Principles, makes philosophical use of both "force" and "energy."
[238:9] Cf. [Chap. IX].
[240:10] Lucretius: Op. cit., Bk. I, lines 1021-1237.
[241:11] Quoted from La Place's essay on Probability by Ward: Op. cit., I, p. 41.
[243:12] An interesting account and criticism of such a theory (Clifford's) is to be found in Royce's Spirit of Modern Philosophy, Lecture X.
[244:13] This method replaced the old theory of "catastrophes" through the efforts of the English geologists, Hutton (1726-1797) and Lyell (1767-1849).
[245:14] Harvey's discovery of the circulation of the blood, published in 1628, was regarded as a step in this direction.
[250:15] From the account of La Mettrie in Lange: History of Materialism. Translation by Thomas, II, pp. 67-68.
[251:16] Quoted from Voltaire's London Letter on the English, by Lange: Op. cit., II, p. 18.