AMCEB.E OCCURRING IN EXUDATIONS, ETC. 235 



in part applied to either Entamoeba Mstolytica or 

 Entamceba buccalis, and it is doubtful if this species 

 can be considered valid. It is well known that under 

 certain conditions Entamoeba Mstolytica enters the 

 blood stream and may be carried to distant tissues 

 where it may produce abscess formation and abscesses 

 due to this organism have been found in the brain, 

 lungs and kidneys. From the description given of 

 Entamoeba kartulisi it is very probable that it is 

 identical with Entamoeba Mstolytica, and that the ab- 

 scesses in which it was found were caused by the 

 latter organism. 



Artault, in 1898, described an amoeba occurring in 

 the lungs which is now known as Entamoeba pul- 

 monalis. The description of this species is quite 

 similar to that of Entamoeba Mstolytica, and in all 

 probability the latter organism was the one observed 

 by Artault. Entamoeba pulmonalis cannot be con- 

 sidered a valid species. 



