Note 784 — JUVENAL'S SATIRES. (continued 3)

Castora. Ov., Nux., 165, "Sic ubi detracta est a te tibi causa pericli Quod superest tutum, Pontice Castor, habes!" This story of the beaver is told Plin., viii., 30; xxxvii., 6, and is repeated by Silius, in a passage copied from Ovid and Juvenal. "Fluminei veluti deprensus gurgitis undis, Avulsâ parte inguinibus causâque pericli, Enatat intento prædæ fiber avius hoste," xv., 485. But it is an error. The sebaceous matter called castoreum (Pers., v., 135), is secreted by two glands near the root of the tail. (Vid. Martyn's Georgics, i., 59, "Virosaque Pontus Castorea," and Browne's Vulgar Errors, lib. iii., 4.) Pliny, viii., 3, tells a similar story of the elephant, "Circumventi a venantibus dentes impactos arbori frangunt, prædâque se redimunt."