Nicholas Culpeper,
The Complete Herbal
“ The liver of a Frog, being dried and eaten, helps quartan agues, or as the vulgar call them, third-day agues.Castoreum resists poison, the bitings of venomous beasts; it provokes the menses, and brings forth birth and after-birth; it expels wind, eases pains and aches, convulsions, sighings, lethargies; the smell of it allays the fits of the mother; inwardly given, it helps tremblings, falling-sickness, and other such ill effects of the brain and nerves: A scruple is enough to take at a time, and indeed spirit of Castorium is better than Castorium, raw, to which I refer you. ”
