280 MANGE. 



which purpose Epsom salts may be given, two or three times a- 

 week, in mild doses. But the most effectual internal remedy is a 

 judicious use of alteratives. Red mange requires the aid of mer- 

 curial alteratives. Indeed, they assist in every variety of it, but 

 this one can hardly be cured without. The following formula is a ' 

 good one : — 



Black sulphuret of quicksilver ('^^Aiop« jwtweraZj... 1 ounce 



Supertartrate of potash (cream of tartar) 1 ounce 



Nitrated potash (nitre) 2 drachms. 



Divide into sixteen, twenty, or twenty-four doses, according to the 

 size of the dog, and give one every morning or evening. Any of 

 the other medicines of this class, mentioned under the head Altera- 

 tives, may be also used on these occasions. 



In desperate cases the following may be tried, after the others 

 have proved unequal to the cure : — 



Sulphuric acid (oil of vitriol) 10 drops 



Conserve of roses 1 ounce 



Flour of sulphur half an ounce. 



Divide into eight, twelve, or fifteen balls, according to the size of 

 the dog, and give one every day. 



Or the following : — 



Oymuriate of quicksilver 3 grains 



wSpring water 3 ounces. 



Dissolve, and make twelve or fifteen doses of it, according to 

 the size and strength of the body, and give one every night and 

 morning. 



With regard to the manner and frequency of external applica- 

 tions, they should, particularly when liquid, be used every day. 

 The mercurial ones require caution, not only as already insisted 

 on, to prevent the dog from licking them, but also to watch that 

 salivation may not be occasioned by their use. When mercurial 

 preparations are licked by dogs, they are apt to occasion violent 

 and dangerous diarrhoea. Not only, therefore, should the licking 



