328 Culture Characters 



Eeaction of media (Puller's scale) -)- or — 



Gelatin plate: Grown 24 hours at °C. 



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



Sketches. 



i hours at °C. 



6 days at "C 



(a) Surface Colonies. 



Agar plate: Grown 24 hours at °C. 



(b) Deep Colonies. 



Sketches. 



48 hours at °C. 



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



