DISEASES OF THE SKIN. 



161 



the mane and tail. Multitudes of minute pustules appear, whose sum- 

 mits gradually expand, burst, and coalesce with one another; and the 

 discharge from these forms patches of crusts upon the skin. Under 

 these crusts the hair loosens at its roots, and either falls out or is rubbed 

 off from time to time, and at length the place is left bare. 



Fig. 75. 

 Dermatodectes Equi. 



The skin loses its elasticity, becomes corrugated in harsh dry folds, 

 especially about the neck and sides; sometimes blood oozes from the bare 

 places. The disease is accompanied with intolerable itching. 



Treatment. — The treatment of mange must be thorough to be ef- 

 fective. The parts affected must be dressed with a solution of carbolic 

 acid in the proportion of half an ounce of the acid to a pint of water. 



In slight and recent cases, the skin will soon recover its tone when 

 11 



