LABORATORY AND GREENHOUSE STUDIES. 



89 



Table XVII. — Growth of coconut cultures Nos. 1 to 6 and Bacillus coli on plates of 

 Endo's medium {made by Ruatd's method), April 21 to May 4, 1910, at 3T^ C. 



From tliis first experiment it is seen that the reaction is not com- 

 plete in all cases, and, moreover, it is not permanent in all cases 

 In Bacillus coli and one of the coconut cultures (No. 3), which were 

 placed in the thermostat at 45° C. after 9 days, the color reaction 

 13 days after inoculation was complete and apparently permanent. 

 In other tubes portions of the plates became red and then bleached 

 out. One culture (No. 1) failed to show the reaction. 



228 



