PLATE 39 



Fig. 13. Eight -nucleate cyst of Endamoeba coli in human material fed to rats. 



Fig. 14. Eight nucleate cyst of Enidamoeha coli recovered in faecal material 

 from rat. 



Fig. 15. Eight nucleate cyst of Endamoelia coli recovered in faecal material 

 from rat. 



Fig. 16. Eight -nucleate cyst of Endamoeba coli in human faecal material 

 fed to rats. 



Fig. 17. Binucleate cyst of Councilmania lafieuri recovered in faecal material 

 from rat. Large glycogen vacuole, surrounded with chromatoidal bodies. Upper 

 nucleus in telophase, showing chromosomes and karyosome having separated. 

 Lower nucleus in prophase. 



Fig. 18. Eight -nucleate cyst of Endamoeba coli recovered in faecal material 

 from rat. 



Fig. 19. Eight-nucleate cyst of Councilmania lafieuri in human faecal material 

 fed to rats. 



Fig. 20. Eight-nucleate cyst of Councilmania lafieuri recovered in faecal 

 material from rat. 



Fig. 21. Eight-nucleate cyst of Councilmania lafieuri in human faecal material 

 fed to rats. 



Fig. 22. Eight-nucleate cyst with bud of Councilmania lafieuri recovered in 

 faecal material from rat. Note the somewhat massed type of karyosome which 

 may be confused by some with the typical nucleus of E. coli. 



Fig. 23. Eight-nucleate cyst of Councilmania lafieuri recovered in faecal 

 material from rat. 



[430] 



