[221] History of Ideas, b. iii. c. x.
[222] Ibid. b. iii. c. ix. x. xi.
[223] Opticks, qu. 31.
[224] Nov. Org. l. ii. Aph. 2. "Licet enim in natura nihil existet præter corpora individua, edentia actus puros individuos ex lege; in doctrinis tamen illa ipsa lex, ejusque inquisitio, et inventio, et explicatio, pro fundamento est tam ad sciendum quam ad operandum. Eam autem legem, ejusque paragraphos, formarum nomine intelligimus; præsertim cum hoc vocabulum invaluerit, et familiariter occurrat."
Aph. 17. "Eadem res est forma calidi vel forma luminis, et lex calidi aut lex luminis."
[225] Essay, b. xi. c. iv. sect. 3.
[226] Ibid. c. xiii. sect. 22.
[227] History of Ideas, b. iii. c. iii. Modern Opinions respecting the Idea of Cause.
[228] Ibid. b. i. c. iv.
[229] Langue des Calculs, p. 1.