BACTERIUM DIPHTHERIAE 



201 



Gelatin Stab: Grown 24 hours at C. Q 



I 



48 hours at C. 



6 days at 



Agar Streak: Grown 24 hours at C. 



48 hours at C. 6 days at 



Potato: Grown 24 hours at C. qj 



I A. 'I 

 \ ' 



/ 

 ) 

 48 hours at C. 6 day s at C. 



Bouillon: Grown 24 hours at C. 



48 hours at ..C. 



Gdaysat C. 



