PLATE I 



A Growth of B. welchii on "Chocolate" Agar 15 Minutes after Removal from Anaerobic Jar. 

 b', Growth of BI welchii on "Chocolate" Agar as It Appears Immediately after Removal from 



Anaerobic Jar. 



C, Appearance of Culture of B. ivckhii Grown at Reduced Atmospheric Pressure— 200-300 Mm. 



