Note 23 — PHILOSOPHY OF LIFE. (continued 3)

Or the central fire, according to Boeckh, around which the whole planetary heavens revolve, and which is also the source of light, which being collected by the visible sun, is transmitted to the earth. By the αντἱχθν or counter-earth, whose revolution is parallel and concentric with that of the earth, Boeckh understands that half of the terrestrial globe which, as turned away from the sun, is in darkness. Sea August. Boeckh “de Platonico systemate cœlestium globorum, et de vere indole astronomiæ Philolaicæ,” or his “Philolaus,” pp. 114-136, and Ideler “Ueber d. Verhaltniss d. Copernicus zum Alterthum,” in the Museum d. Alterthumswissenschaft, Bd. ii., St. ii., § 405, &c.—Trans.