Note 1197 — SALTPETRE. GUNPOWDER. AQUAFORTIS.
William Johnston translation
In like manner, a heap of dung covered with earth is lixiviated, and the result, without the addition of ashes, used as saltpetre.
William Johnston translation
In like manner, a heap of dung covered with earth is lixiviated, and the result, without the addition of ashes, used as saltpetre.