NON-PATHOGENIC BACTERIA. 



A. Bacillus Subtilis. B. Micro-coccus Ureee. 



A. Bacillus subtilis: (a) Culture tube; (b) Cells. 



B. Micrococcus urese; (a) Culture tube; (b) cells. 



A. Sarcina Lutea. B. Spirillum Bubrum. 



A. Sarcina lutea: (a) Culture tube; (b) Cells. 



B. Spirillum rubrum: (a) Culture tube; (b) Cells. 



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