172 CULTURE CHARACTERS 



Eeaction of media (Fuller's scale) 4. or . 



Gelatin plate: Grown 24 hours at C. Sketches. 



(a) Surface Colonies. (b) Deep Colonies. 



48 hours at C. 6 days at C. 



Agar plate: Grown 24 hours at C. Sketches. 



(a) Surface Colonies. (b) Deep Colonies. 



48 hours at C. 6 days at C. 



Special Media: (Such as litmus milk and blood serum.) 



