i re 
The Philippine Journal of Science 1915 
38 











Fic. 16. Temperature chart of horse 2 for January, 1912. 













Fic. 17. Temperature chart of horse 2 for February, 1912. 

Units per cubie centimeter by 
Chart showing the antitoxin curve for horse 2. 
Fig. 18, 
S. 
month 
HORSE 3 
same time as that 
of horse 2, and the two received practically the same treatment. 
This horse produced much stronger antitoxin than did horse 2 
in 
Immunization of horse 3 was begun at the 
February, 1912, when the serum of horse 2 contained 150 
serum of horse 3 
units of antitoxin per cubic centimeter, the 
