290 



BACTERIOLOGY OF THE EYE 



Cultures could only be obtained anaerobically, and growth only occurred after 

 several days in the incubator. At the bottom of the agar tube the colonies 

 developed in the form of round greyish-white smooth granules. In a stab culture 

 the neighbourhood of the stab became cloudy. 



FIG. 60. AXENFELD, CASE II. PREPARATION OF THE CONCRETION. 

 GRAM-STAINING. 



/v^W^^V 



FIG. 61. AXENFELD, CASE II. ANAEROBIC AGAR CULTURE. POLYMORPHISM ; 

 RESEMBLANCE TO DIPHTHERIA BACILLI IN PLACES. GRAM'S STAIN. 



At the bottom of a bouillon culture a mulberry mass formed ; it was easily 

 broken up, and disintegrated when shaken, the fragments resembling small pieces 

 of cotton-wool. 



When freely transferred, cultures from bouillon and agar could be propagated 

 on agar. 



