[158] Ibid. Ch. 2. § 30, 17.
[159] Book I. Ch. 3.
[160] Ch. 1. § 7.
[161] Chap. 5. § 8.
[162] Princ. pag. 60.
[163] Street, in Astron. Carolin.
[164] See Chap. 5. §9, &c.
[165] In the foregoing page.
[166] See Newton. Princ. Lib. III. prop. 13.
[167] Chap. 5. § 10.