The Origin and Growth of the Healing Art by Edward Berdoe

17. Celsus, _De Medicina Libri Octo_, of which the fifth treats of

different sorts of medicines; 18. Twelve books of Pliny’s, _Historia Naturalis_ (from the twentieth to the thirty-second), are devoted to Materia Medica; 19. Scribonius Largus, _Compositiones Medicamentorum_;