THE DYSENTERIES— AMCBBIC 



39 



Death ma}- result in seven to ten days from exhaustion, perforation, 

 peritonitis and haemorrhage. 

 Chronic amoebic dysentery. 

 This folloAvs the acute, or it may be insidious in onset not preceded 



Experimentally infected cat's colon. Under the higher magnification, the glands of Lieberkiihn 

 are seen to be full of entamoeba, which have destroyed most of the epithelium, and are traversing 

 the basement membrana. x 350. (After Jiirgens.) 



En/aviaba histolytica. Organisms in dysenteric mucus. X 400. The granular piotoplasm 

 occupies almost the entire cell, and is distinguished from the ectoplasm only by a slight difference 

 in shading. 



by an acute attack ; there is diarrhoea, with occasional abdominal pain 

 and passage of fc-eculent material with much mucus and perhaps 

 streaked with blood. In between attacks there may be constipation. 

 Stools, which are often more frequent at night, are from twelve to four- 



