DESCRIPTION OF PLATE VII. 

 Casual Cow-pox. 



FIG. 1. Case of W. P , a milker, infected from the teats of a cow with 



natural cow-pox. There was a large depressed vesicle with a small 

 central crust and a tumid margin, the whole being surrounded by a 

 well-marked areola and considerable surrounding induration. 



FIG. 2. The same case a week later, showing a reddish-brown crust on a 

 reddened elevated and indurated base. 



