[38] See Book II. Ch. 3. of this treatise.
[39] See Chap. 4.
[40] At the end of his Optics. in Qu. 21.
[41] See the same treatise, in Advertisement 2.
[42] Nov. Org. Lib. i. Ax. 105.
[43] Princip. philos. pag. 13, 14.
[44] Princ. Philos. L. II. prop. 24. corol. 7. See also B. II. Ch. 5. § 3. of this treatise.
[45] How this degree of elasticity is to be found by experiment, will be shewn below in § 74.
[46] In oper. posthum de Motu corpor. ex percussion. prop. 9.
[47] In the above-cited place.