LIST OF ILLUSTRATIONS 



FIG. PAGE 



I. Diagram illustrating the life cycle of Entamceba coli. 



(After Hartmann.) 25 



II. Entamceba coli. (After Casagrandi and Barbagallo.) 86 



III. Diagram of Entamceba coli. (Craig.) 94 



IV. Changes in the form of Entamceba coli during amoeboid 



motion. (Craig.) 94 



V. Photomicrograph of Entamceba coli and Entamceba histo- 



lytica. (After Jin-gens.) 100 



VI. Multiplication by simple division in Entamceba coli. 



(Craig.) 100 



VII. Schizogony of Entamosba coli. (Craig.) 104 



VIII. Sporogony of Entamosba coli. (Craig.) 104 



IX. Diagram of Entamosba histolylica. (Craig.) 116 



X. Entamceba histolytica (after Hartmann), showing character 



of the nucleus and karyosome 116 



XI. Entamosba histolytica. (Viereck.) 116 



XII. Photomicrograph of Entamceba histolytica. (Gray.) 116 



XIII. Entamceba histolytica from feces of dysentery. (Jiirgens.) 122 



XIV. Photomicrograph of Entamceba histolytica. (After Jiirgens.) 128 

 XV. Photomicrograph of Entamosba histolytica. (After Jiirgens.) 128 



XVI. Entamosba histolylica. (After Roemer.) 128 



XVII. Entamceba histolytica. (After Hartmann.) 128 



XVIII. Reproduction by budding in Entamosba histolytica. (Craig.) 138 

 XIX. Entamosba histolytica within mucous membrane of intestine. 138 

 XX. Section of intestine, showing numerous amoebae within the 



tissues. (After Councilman and Lafleur.) 148 



XXI. Section of intestine, showing numerous amoebae within the 



tissues. (After Councilman and Lafleur.) 148 



XXII. Entamceba tetragena. (After Hartmann.) 184 



XXIII. Various stages in the development of Entamceba tetragena. 



(After Hartmann.) 184 



ix 



