Note {12} — THE PLEASURES OF OPIUM
Reading edition
Of this, however, the learned appear latterly to have doubted; for in a pirated edition of Buchan’s Domestic Medicine, which I once saw in the hands of a farmer’s wife, who was studying it for the benefit of her health, the Doctor was made to say—“Be particularly careful never to take above five-and-twenty ounces of laudanum at once;” the true reading being probably five-and-twenty drops, which are held equal to about one grain of crude opium.