454 THE HORSE. 



7. Astringent Ointment for Sore Heels — 



Acetate of Lead .... 1 drachm. 



Lard ...... 1 ouuce. Mix 



8. Another for the Same — 



Nitrate of Silver powdered . . ^ drachm. 



Goulard Extract , . . . 1 drachm. 



Lard ...... 1 ouuce. 



Mix, and use a very small portion every night. 



BLISTERS. 



Blisters are applications wliicli inflame the skin, and proddce 

 pL 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 lessened, 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 Oint3ient (Counter-Irritant) — 



Hog'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-Irritant) — 



Strong Mercurial Ointment . . 4 ounces. 



Oil of Origanum . . . . ^ ounce. 



Finely-powdered Euphorbium . . 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. 



