﻿92 The Philippine Journal of Science 1914 



5. Differential diagnosis made upon encysted forms found in 

 specimens from 76 individuals gave the following results : Enta- 

 moeba coli present in 94.7 per cent, E. histolytica in 64.5 per cent, 

 E. coli only in 35.5 per cent, E. histolytica only in 5.3 per cent, 

 and E. coli and E. histolytica both present in 59.2 pef- cent. 



6. It is probable that in dysenteric stools active E. coli closely 

 resembles active E. histolytica in motility and general appear- 

 ance without a corresponding change in its nuclear structure. 



