EXERCISE LX. VARIETY OF PIGMENTS. 



Make agar or potato streak cultures of the following organisms, incubate at 38 C.. study, describe and sketch. 



AGAR STREAK. 



24 HOURS. 



48 HOURS. 



SKETCHES. 



Bacillus 

 indicus 

 or 



Sarcina 

 aurantiaca 

 or 



Sarcina 

 lutea 

 or 



Pseudomonas 

 fluorescens 

 (B. fluorescens) 



Pseudomonas 

 aeruginosa 

 (B. pyocyaneus) 



Pseudomonas 

 violacea 

 or 



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