ASTRINGENTS — BLISTERS, OR VESICANTS. 



453 



31. External Astringent Powders for Ulcerate o Surfaces — 

 Powdered Alum . . . . 4 ounces. 

 Armenian Bole ... .1 ounce. 



32. 



White Vitriol 

 Oxide of Zinc 



33. Astringent Lotion — 



Goulard Extract 

 Water . . . 



34. Sulphate of Copper . 

 Water .... 



35. Astringent Ointment for Sore Heels- 



Acetate of Lead 



Lard .... 



36. Another for the Same — 



Nitrate of Silver powdered 

 Goulard Extract 

 Lard .... 



Mix, and use a very small portion every night, 



4 ounces. 



1 ounce. Mix. 



2 to 3 drachms. 

 ^ pint. 



1 to 2 drachms 

 ^ pint. Mix 



I drachm. 



1 ounce. Mis. 



J drachm. 

 1 drachm 

 1 ounce. 



BLISTERS, OR VESICANTS. 



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 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. 



37. Mild Blister Ointment (Counteb-Irbitant) — 



Hog's Lard 4 ounces. 



Venice Turpentine .... 1 ounce. 

 Powdered Cantharides . . .6 drachms. 

 Mix, and spread. 



38. 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. 



