he adds, proceeds entirely from their ignorance, and from the want of knowing those ingredients that are mixed up with it, for they naturally weaken the power of the opium.
Dover's powder first appeared in the London Pharmacopœia for 1788. Probably it was adopted after the quack Ward had made it famous as a "sweating powder." Ward died in 1761 and the formulæ for his remedies were published soon after his death.
Unguentum Elemi.
Ointment of elemi was in all the London Pharmacopœias, and was only dropped from the B.P. 1898. In the earlier issues it was called "unguentum or linimentum Arcœi," because it had been introduced and recommended by Arcœus of Amsterdam in 1574, for healing wounds. A similar ointment was called "Balsamum Arcœi" in the Prussian Pharmacopœia of 1847. The inventor's formula was to melt together six parts each of gum elemi and turpentine, and add six parts of melted stag's suet, and two parts of oil of St. John's wort. Arcœus was a Spaniard by birth, and an eminent authority on the treatment of wounds.
Fowler's Solution of Arsenic.
Thomas Fowler kept an apothecary's shop in York from 1760 to 1774. In the latter year he relinquished trade, and went to Edinburgh to study medicine. Graduating as M.D. in 1778, he settled at Stafford, and was appointed physician to the Infirmary of that town. Later, he returned to York, where he acquired a large practice, and where he died in 1801.
It was in 1786, during his residence at Stafford, that
