454 THE HORSE. 



7. Astringent Ointment for Sore Heels — 



Acetate of Lead .... 1 drachm. 



Lard ...... I ounce. Mix. 



8. Another for the Same — 



Nitrate of Silver powdered . . ] drachm. 



Goulard Extract . . 1 drachm. 



Lard ...... 1 ounce. 



Mix, and use a very small portion every night. 



BLISTERS. 



Blisters are applications which inflame the skin, and produce 

 a secretion of serum between the cutis and cuticle, by which the 

 latter is raised in the form of small bladders; but in consequence 

 of the presence of the hair, these are very imperfectly seen in the 

 horse. They consist of two kinds — one, used for the sake of coun- 

 ter-irritation, by which the original disease is lessoned, in conse- 

 quence of the establishment of this irritation at a short distance 

 from it; the other, commonly called "sweating" in veterinary sur- 

 gery, by which a discharge is obtained from the vessels of the part 

 itself, which are in that way relieved and unloaded. There is also 

 a subsequent process of absorption in consequence of the peculiar 

 stimulus applied. 



1. Mild Blister Ointment (Counter-Irritant) — 



Hug's Lard . . . . .4 ounces. 



Venice Turpentine . ... 1 ounce. 



Powdered Cantharides . .6 drachms. 



Mix, and spread. 



2. Stronger Blister Ointment (Counter-Irritant)— 



Spirit of Turpentine . ... 1 ounce. 



Sulphuric Acid, by measure . . 2 drachms. 



Mix carefully in an open place, and add — 



Hog's Lard . . . . .4 ounces. 



Powdered Cantharides . . .1 ounce. 



Mix, and spread. 



3. Very Strong Blister (Counter-Ireitant)— 



Strong Mercurial Ointment . . 4 ounces. 



Oil of Origanum . . . \ ounce. 



Finely-powdered Euphorhium . . 3 drachms. 



Powdered Cantharides . . \ ounce. 



Mix. and spread. 



4. Rapidly Acting Blister (Counter-Irritant) — 



Best Flour of Mustard . . .8 ounces. 



Made into a paste with water : then add — 



Oil of Turpentine . . . . 2 ounces. 



Strong Liquor of Ammonia . . 1 ounce. 



This is to be well rubbed into the chest, belly, or back, in cases of 

 acute inflammation. 



