SARCODINA 1053 



ENTAMCEBA HISTOLYTICA 



(EntamoBba tetragena [Viefeck], Entamceba africana [Hartmann] 

 Entamceba nipponica [Koidzumi, pro parte], Entamoeba tropicalis 

 [Lesage, pro parte] ) 



It has long been customary to say that amoebse as a cause of 

 disease were first described by Lambl of Prague, in 1860, who found 

 them present in the stools from a case of severe diarrhea in a child, 

 but some zoologists, Leuckart (1863), Grassi (1888) and Dobell (1919) 

 believe that the organisms he described were degenerated trichomonads. 



FIG. 121. ENTAMCEBA HISTOLYTICA. Vegetative form, simple division. (X 1300.) 

 (Army Medical School Collection, Washington, D. C.) 



In 1870 Lewis and Cunningham found amoebae in 20 per cent of the 

 stools of cholera patients, but attached no pathogenic importance to 

 them. The first accurate description we owe to Loesch of Petrograd, 

 who in 1875 studied an undoubted case of amosbic dysentery with 

 relapses, and he named the organism Amoeba coli. He was further 

 successful in reproducing the disease in a dog, and thus began its 

 experimental investigation. Not much progress was made until 

 Kartulis in Egypt began, in 1886, the publication of a long series 

 of studies which has continued up to the present time, and because 

 of the rich clinical and pathological material at his disposal his work 

 has been of the greatest value. In 1890 Osier published the first paper 



