FORMS AND STAGES OF SHEEP-POX. 



299 



SHEEP-POX (VARIOLA OVIN/E), 



Is a contagious, infectious, and eruptive disease, anal- 

 ogous to small-pox and cow-pox; said to depend on a 



Fig. 131. Sheep-pox. a, the eruptive stage. 6, the pustular stage. 



Fig. 138. The Confluent Form (union of two or more pustules). 



microbe ; runs a definite course, and as a rule occurs but 

 once, 



