168 CULTURE CHARACTERS 



Reaction of media (Fuller's scale) -|_ or 



Gelatin plate: Grown 24 hours at C. | Sketches. 



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



48 hours at. 



days at 



{a) Surf ace Colonies. 



Agar plate: Grown 24 hours at C. 



(b) Deep Colonies. 



Sketches. 



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



