[XXI_43] Ib.
[XXI_44] Athen. i. 11.
[XXI_45] Senec. Quæst. Natur. iii. 17, 18.
[XXI_46] Plin. ix. 30.
[XXI_47] Horat. Sat. ii.
[XXI_48] Martial. x. 31.
[XXI_49] Juvenal. iv. 11.
[XXI_50] Sueton. In Tiber. 34.
[XXI_51] Senec. Epist. 95.
[XXI_52] Galen. De Aliment. Facultat.