236 CULTURE CHARACTERS 



Reaction of media (Fuller's scale) -j- or 



Gelatin plate: Grown 24 hours at C. 



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



Sketches. 



48 hours at C. 



6 days at C. 



(a) Surface Colonies. 



Agar plate: Grown 24 hours at C. 



: (b) Deep Colonies. 



Sketches. 



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



