412 



HARRIET LESLIE WILCOX 



TABLE 3 



Martin pepton veal hrolh 



First quarter. 



Second quarter. .^ 



Third quarter. . , 



Fourth quarter. 



1917 



2 lots 1:15,000 



1 lot Below 1:5,000 



Average toxicity 1:10,000 



1 lot 1:25,000 

 1 lot 1:10,000 

 Average toxicity 1:17,000 



1 lot 1:15,000 



2 lots 1:8,000 

 1 lot 1:5,000 



Average toxicity 1:9,000 



1 lot 1:15,000 



2 lots 1:8,000 

 Slots 1:5,000 

 Slots Below 1:5,000 

 Average toxicity 1:5,000 



2 lots below 1:5,000 



Average toxicity below 

 1:5,000 



1 lot below 1:5,000 



Average toxicity below 

 1:5,000 



None produced 



None produced 



TABLE 4 

 Comparative tests of differe?it strains in Martin pepton veal broth 



Experiment 1. December 2S, 1916. 



Experiment 2. May 19, 1917. 



Experiment S. December 15, 1917. 



Research 



Goadby 



Pasteur 



Research 

 Goadby 



Research 



Pasteur 



Pasteur 



35,000 

 35,000 

 25,000 



1:10,000 

 1:15,000 



8,000 

 8,000 

 8,000 



stated this was the strain used in our tests. The Goadby strain 

 was obtained from Dr. MacConkey, Lister Institute, England, 

 in 1916, and had been isolated from a war case by Dr. Goadby in 



