402 THE HORSE. 



* sweating- blister/ used for old strains and swellings. As a blister it is far 

 inferior to the common ointment; as a stimulant frequently applied it must 

 be sufficiently lowered, or it may blemish. 



Vinegar is a very useful application for sprains and bruises. Equal 

 parts of boiling water and cold vinegar will form a good fomentation. 

 Extract of lead, or bay salt, may be added with some slight advantage. 

 As an internal remedy, vinegar is rarely given, nor has it, except in very 

 large doses, any medicinal power. The veterinarian and the horse-owner 

 should manufacture their own vinegar. That which they buy may contain 

 sulphuric acid, and pungent spices, and irritate the inflamed part to 

 which it is applied. 



Wax. The yellow wax is used in charges and some plasters to render 



them less brittle. c r^ i 



Zinc. The impure carbonate of zinc, under the name of Calamine 



Powder, is used in the preparation of a valuable healing ointment. Five 

 parts of lard and one of resin are melted together, and when these begin 

 to get cool, two parts of the calamine, reduced to an impalpable powder, 

 are^stirred in. The calamine is sometimes sprinkled with advantage on 

 cracked heels, and superficial sores. 



The sulphate of zinc. White Vitriol, in the proportion of three grains 

 to an ounce of water, is an excellent application in ophthalmia, when 

 the inflammatory stage is passing over ; and quittor is most successfully 

 treated by a saturated solution of white vitriol being injected into the 

 sinuses. A solution of white vitriol of less strength forms a wash for 

 grease that is occasionally useful, when the alum or blue vitriol does not 

 appear to succeed. 



