392 LIST OP MEDICINES. 



of fresh tobacco leaves cut fine, in a pound of lard over a 

 gentle fire until it becomes friable, would be an admirable 

 application on irritable ulcei's of tbe foot or other parts. 



TuEPENTiNB (Spirits of) — Has about the same internal 

 and external efiect with tar ; but it lacks the creosote, which 

 may render it a little less effective on old ulcers. (See Tar.) 



Vbedigeis (Acetate of Copper) — Often used in hoof- rot 

 in combination with blue vitriol. Its medicinal properties are 

 very similar, and I doubt whether it forms any useful addition 

 to the former in such cases. 



Zinc (Carbonate of) — Mixed with lard, constitutes a 

 valuable emollient and healing ointment. It is mixed in the 

 proportion of one part of the carbonate, by weight, to eight 

 of lead. 



