OF THE ALIMENTARY TRACT 101 



into eight offspring, from which point the life habits 

 and cycle are repeated. 



It has never been known to invade the tissues or 

 to do anything harmful to its host. Other animals 

 may harbor amoebae of similar characteristics but, 

 so far as is known, they are distinct. 



EXPERIMENTAL INFORMATION 



Growth of Endamoeba coli in culture has been re- 

 ported by Kofoid and Allen (1926) and by St. John 

 (1926). 



COUNCILMANIA LAFLEURI 



To Kofoid and Swezy (1921) are due the credit for 

 either discovering a new genus of amoebae, parasitic 

 in the intestine of man and other animals, or of in- 

 troducing another element of confusion into an al- 

 ready complicated situation. In the status of this 

 question at the present time it is largely Kofoid and 

 his co-workers against the field of other protozoolo- 

 gists. The time is not yet when the controversy may 

 be settled or when one who has not been a material 

 worker on this particular question should bear any 

 but an open mind. Neither is this the place to an- 

 alyze the data in detail. The question is an im- 

 portant one in medical protozoology because of the 

 suspicion that Councilmania lafleuri may be harm- 

 ful to its host. It is considered sufficient to state 

 the problem at this time and to refer those who may 



