By means of lard, wax, etc., various substances are mixed up so as to be applied to wounds, chiefly to keep out the air.

A good ointment for old sores:

57. - Yellow basilicon,

Ointment of nitric-oxide of mercury, equal parts.

Digestive ointment:

58. - Red precipitate, 2 ounces. Venice turpentine, 3 ounces. Beeswax, 1 1/2 ounce. Lard, 4 ounces. - Mix.

Mange ointment:

58a. - Green iodide of mercury, 1 drachm. Lard, 8 drachms.

Mix, and rub in carefully every 2nd or 8rd day.