PLATE 4 



EXPLANATION OF FIGURES 



58 Living trophozoite of the polysporous form .shorti}' after being placed on 

 the slide. X 640. 



57 Small living trophozoite of the polysporous form containing several ery- 

 throcytes in different stages of disintegration. X 640. 



58 Living trophozoite with a number of l)ud-like ectoplasmic processes. 

 X 640. 



59 Living trophozoite with a number of gemmules in the endoplasm. X 640. 



60 Living trophozoite from which a gemmule is just escaping. X 640. 



63 Section through base of young trophozoite showing protoplasmic processes 

 l)y which it is attached to the urinary epithelium. 



370 



