20 



Table A — Continued. 



It was thought that by treating the amcebfe in surface growth as 

 described in the foregoing table, where the lower strata are pro- 

 tected by the upper ones of amoebse and bacteria, the conditions 

 encountered would be fairly analogous to those existing in the 

 intestines, where the amoebEe are protected by mucus and fecal 

 matter. Cases in which the amoebge have burrowed beneath the 

 surface epithelium will not be taken into consideration in this 

 connection, as no form of local treatment would probably avail 

 against such conditions. 



The foregoing table is therefore of interest as suggesting the 

 relative action of several chemicals on artificially grown amoebae 

 under conditions unfavorable to the complete effect of the anti- 

 septic substances and therefore somewhat like the conditions encoun- 

 tered in the practical use of the chemicals in treating the disease 

 locally in the intestine itself. 



It will be noted that quinine 1-500 had but a moderate effect 



