CHAP. III.] ALTERATIVE REGIMEN. 397 



has terminated with a tedious ulceration which 

 causes lameness, on which event he should not be 

 exercised ; but let the parts be poulticed with a 

 turnip poultice, or it may be made of oatmeal and 

 the grounds of stale beer, or both may be employed 

 alternately ; and then the parts, if luxuriant or thick, 

 may be washed with a solution of blue vitriol in 

 water, or the foregong strong wash, No. 3. Dress 

 the cracks with the following 



Ointment. 



Oil of turpentine, 3 drachms, 



Hog's lard, 6 ounces, 



Litharge water, half an ounce. Mix* 

 This may be varied by substituting Venice turpen- 

 tine, for half the quantity of the oil. In these invete- 

 rate cases we have now under consideration, a change 

 of medicine is desirable, if but for the change which 

 it occasions in the animal's digestive powers ; for 

 this purpose the blue pill has been given as an al- 

 terative, as well as that other preparation of mer- 

 cury, the well-known calomel. Both act upon the 

 kidneys, and set them in motion for the production 

 of urine : the calomel chiefly effects this, by pre- 

 viously stimulating the liver, which again is very de- 

 sirable by way of change. 



Alterative Balls. 



Calomel, 1^ drachms, 

 Aloes, 3 drachms, 



