DISEASES OF THE SKIN 



85 



skin. Weak, debilitated hogs seem to be predisposed 

 to warts, or more likely, the condition of the inde- 

 vidual is the cause of the malnutrition of the skin. 

 Irritation to the skin by dirt, etc., may also cause it. 

 Warts are said to result from specific causes (germs). 

 If the cause of the warts is known it should be 

 removed. Large warts can be cut off with a knife or 

 a pair of scissors. A preparation of a dram of 

 salicylic acid and an ounce of castor-oil, rubbed on 

 the warts once a day for a week or more, may re- 

 move them. 



