Table III. — Feeding experiments with Entamosba histolytica. 



Llll 



Liv 



LVI 

 LVII 



Lvni 

 Lix 



Records of men previoua to experiment. 



History with reference to dysentery. 



Used for previous feeding experirr 



XLIl 

 XLIII 



XLIV 



XLV 



XLVI 



XLVn 



XLVllI 



7 10 



7 6 



2 7 

 8 5 



3 attacks of dysentery 6 years ago . 



..do 



..do 



Mucous dysentery 7 yean 



Negative 



Dysentery 16 years ago.. 



Negative 



Acute dysentery 4 years ago . 



Culture of ATnwba iC 96 days previously with negative 

 results; culture of Ammba SA 17 days previously with 

 negative results. 



Entammba hUtulytic 

 suits negative. 



2. and 26 days proviously.^e 



Culture of Amwba SA 255 days previously; culture of 

 Ama-.ba fl/^246 days previously; culture of Aiiuxba lOG 

 215 days previously. Results all negative. 



Culture otAiiurhatlG 257 days previously with negativi 





Culture of AmoBba I A 279 days previously with negative 

 results; culture of Amtsba lOG 267 days previously 

 with negative results. 



..do 



..do 



Culture of stools on 



MuBgrave and Clegg'i 



medium. 



..do Man 2 



Source and description of the material ingested. 



Source of material. 



Convalescent 59 days from a spontaneous attack of 

 entamcebic dysentery. Stools formed. 



Convalescent 161 days from a spontaneous attack of 

 entamoebic dysentery. Stools formed. 



Convalescent 84 days from experimental 

 dysentery. Stools formed. 



"Contact carrier," experimentally parasitized with 

 Entamteba hUtolyliea 121 days, first passage. Stools 

 formed. 



"Contact carrier," experimentally parasitized with En- 

 tamosba histelytica. second passage. Stools formed. 



Suffering f ron 

 with bloody 



:e attack of entamcebic dysentery, 

 stools. 



Dead from an entamoebic liver abscess. Material ob- 

 tained post mortem from liver abscess. 



"Contact carrier," naturally parasitized with En- 

 tamoeba histolj/tiea. Stools formed. 



Strain of 

 Entamaba 

 histolytica. 



Resting and encysted _ 



Motile and resting . 



Quantity of material fed. 



2 gelatine capsule: 



3 gelatine capsules . 



1 gelatine capsule . 



2 gelatine capsules 



1 gelatine capsule. 



2 gelatine capsules 



1 gelatine capsule 



Material mixed with— 



..do Magnesi 



Time under ob- 

 vation after 

 feedinK. 



Magnesium oxide . 



Results of feeding experiments. 







6 10 











Negative Entamaba hittltAvticc 



thereafter. 



Entamaba hiatolj/tic 



thereafter. 

 EntavKJeba histotytici 



thereafter. 



Entmnir hn hintolt/ticn 



thereafter. 

 Entamarba hiatolj/tica 



thereafter. 

 Enlamaiba hiatolj/tia, 



thereafter. 

 Entamwba hiatalytico 



thereafter. 



I second day after feeding and 



n fifth day after feeding and 

 n second day after feeding and 



in fifth day after feeding and 



m third day after feeding and 



^n fifth day after feeding and 



in fourth day after feeding and 



Entamtcblc dyaen* 

 tory on twentieth 

 day, relapse on 

 Hixtioth day. 



Negative. 



Slight attack of 

 entamoebic dysen- 

 tery on the nlnoty- 

 tlf th day. 



NoBAtlve. 



^n(ariiiiT6a kiatolytic 

 thereafter. 



1 first day after feediii 



Kntamaba hintotytica on fourth day after feeding and 



thereafter. 



Negative; did not become parasitized 



Entamtrba hintolytiaa on thirty-third day after feeding 



and thereafter. 

 Enlamirbn hintolylicc 



and thereafter. 

 Entamwba hiatolt/lici 



thereafter. 

 Enlamtrha hintolutic 



thereafter. 



EnUtmoiblc dyscn> 

 tery on the llfty- 

 suvcntU day. 



Ncgntivo. 



Do. 



1 forty-fourth day after feeding 

 n fourth day after feeding and 

 m first day after feeding 



Negative; did not become parasitized* 



Entamoiba hiittolutiea on eighth day after feeding and 



thereafter. 

 Enlamteba histolytica on twenty-first day after feeding 



and thereafter, 

 Entam<eba hiatolylica on eleventh day after feeding and 



thereafter. 

 do 



Do. 



Slight attack of 

 entamcebic dysen- 

 tery on the elghty- 

 aavcnth day. 



