286 Culture Charactees 



Reaction of media (Puller's scale) -|- or — 



Gelatin plate: Grown 24 hours at °C. 



Surface Colonies. ; (b) Deep Colonies. 



Sketches. 



48 hours at °C. 



6 days at °C. 



Agar plate: Grown 24 hours at °C. 



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



Sketches. 



48 hours at °C. 



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



