xii CONTENTS 



CHAPTER PAGE 



VI. The Amoebae (Continued) .... 105 

 Endamocha gingivalis. History and Rela- 

 tion to Pyorrhoea Alveolaris. Morphology. 

 Habitat and Effects. Experimental In- 

 formation. Prevention and Treatment. 



VII. The Amoebae (Continued) . . . .117 

 Endolimax nana. lodamoeba butschlii. 

 Dientamoeba fragilis. Other Amoebae. 



VIII. The Flagellates 125 



Classification. General Considerations. 

 Prevalence and Relations. Examination 

 for Flagellates. 



IX. The Flagellates (Continued) . . . 139 

 Trichomonas Species. Cultivation. Tri- 

 chomonas hominis. Prevalence and Rela- 

 tions. Habitat and Effects. Treat- 

 ment. Other Intestinal Trichomonads. 



X. The Flagellates (Continued) . . . 157 

 Trichomonas elongata. Relations. ]\Ior- 

 phology. Habitat and Effects. Treat- 

 ment. 



Trichomonas vaginalis. Prevalence. 

 Transmission, Habitat and Effects. Treat- 

 ment. 



XI. The Flagellates (Continued) . . . 169 

 Chiloniastix mesnili. Prevalence. ]\Ior- 

 phology. Cultivation. Transmission, 

 Habitat and Effects. Treatment. 

 Giardia intcstinalis. Examination for 

 Giardia. Morphology. Habitat and Ef- 

 fects. Treatment. Tricercomonas intesti- 

 nalis. Enteromonas hominis. Embado- 

 monas intcstinalis . 



XII. The Ciltates 196 



Classification. General characteristics. 

 Balantidiuni coli. Prevalence. Trans- 

 mission. Morphology, Habitat and Ef- 



