170 



MORPHOLOGIC VARIATION 



Table XXV 

 Cholera Vibrio 



Table XXVI 

 Colon Bacillus; Rate of Death 



Days of growth 



Plate counts 

 Cells per ccm. 



Per cent 

 stained cells 



Microscopic counts 

 Cells per ccm. 



alkaline 



1,090,000,000 



2,240,000,000 



890,000,000 



322,500,000 



0.0 



4.0 



6.5 



11.2 



2,900,000,000 

 4,640,000,000 

 5,590,000,000 

 6,050,000,000 



