386 Culture Chaeactebs 



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



Gelatin plate: Grown 24 hours at °C. 



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



Sketches. 



Agar plate: Grown 24 hours at °C. 



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



Sijetches. 



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



