Suet is the prepared fat of the sheep. it has the same properties as lard, from which it differs mainly in being of a firmer consistence. The only objection to its use is its liability to become rancid, in which condition it is decidedly irritant; and it should never be employed except when perfectly sweet. in this state, it forms an excellent protective dressing for blisters, ulcers, wounds, and abraded surfaces, and those liable to fee irritated or excoriated by acrid secretions; as the upper lip, for example, in coryza. it is also used to give a firmer consistence to ointments, prepared with lard or olive oil, as in the instance of mercurial ointment.