Fig 1. Many colonies but all slow growing Many colonies'of many characters. 
(Good plate.) ( Doubtful plate.) 
Fig. 3. Poor distribution on plate Fig. 4. Few colonies rapid growing and poorly 
Unsatisfactory plate distributed 
Unsatisfactory plate 
Fig. 5. Few rapidly growing and well distributed Fig. 6. Rapidly growing colonies. 
colonies Doubtful plate.) 
(Good plate 
Plate I. 
