

Hog Cholera. 



•M'9' 



Seventy-five pound hog 15 cubic centimeters. 



One hundred pound hog 20 cubic centimeters. 



Doses increased proportionally for heavier hogs. 



RESULTS. 



During the month of October, 1912, three outbreaks of cholera 

 occurred near the Experiment Station. All the hogs within a dis- 



Injecting the serum after the disinfecting 



tance of one half mile of the outbreaks were vaccinated and close 

 observation of the results was taken. Not a single hog came down 

 with the disease after the vaccinating was completed around the 

 infected territory. 



