72 



Bulletin No. 207. 



cacy of the antitoxic serum produced from the sheep (Charts 

 A and B), from the goat (Charts C and D and Fig. 15), and 

 from the cow (Charts E and F), against a homologous toxin. 



CHART A. 

 Potency Test of Botulism Antitoxin (Sheep Serum A clear). 



Serum administered intraperitoneally Jan. 15, 1917, 11:30 a. m. 

 Toxin administered by the mouth Jan. 16, 1917, 11:30 a. m. 



CHART B. 



Potency Test of Botulism Antitoxin (Sheep Serum D and E 

 defibrinated blood). 



Serum administered intraperitoneally March 13, 1917, 11:15 a. m. 

 Toxin administered by the mouth March 14, 1917, 11:15 a. m. 



