375. VINEGAR.

Vinegar is used chiefly as a sauce, and to preserve vegetable

substances; but it is employed externally when an over dose of

strong wine, spirit, opium, or other narcotic poison has been taken.

A false strength is given to it by adding oil of vitriol, or some

acrid vegetable, as pellitory of Spain, capsicum, &c. It is rendered

colourless by adding fresh burned bone black, 6 ounces to a gallon,

and letting it stand for two or three days to clear.