MILLER'S SPIRILLUM. 



351 



patch that lies quite flat upon the surface and can 

 often only be seen when the tube is held to the light 

 in a special way. 



Fig. 72. 



u bed 



Stab culture of Miller's spirillum in gelatin, at 18° to 20° C. 

 a. After twenty-four hours. 6. After forty-eight hours, t. After seventy-two 

 hours, d. After ninety-six hours. 



Its growth in bouillon is not characteristic. It does 

 not form a pellicle. 



It causes liquefaction of both coagulated blood-serum 

 and egg albumin. 



It does not produce indol. 



It does not cause fermentation of glucose. 



It is non-motile. 



In milk containing blue litmus tincture it causes 



