m 



h 



m 



mm 



HSr 



Plate IV. — Entamoeba dysenteric {E. histolytica). 



a and b, Amceba^ as seen in fresh stools, showing blunt ectoplasmic 

 pseudopodia, non-contractile vacuoles, ingested red corpuscles, 

 and, in a, nucleus ; c, an amceba as seen in a fixed preparation ; 

 ,/, section of wall of liver abscess, showing an amceba of 

 spherical form. The rounded amceba^ on this plate must not 

 be confused with the encysted form. 



