PLATE 3 



EXPLANATION OF FIGURES 



7 and 8 Highly magnified epithelial cells containing many leucocytes within 

 their cell-bodies. A condition typical of the third stage^ — also from 1104 9 . 



9 A smear showing the presence of red blood corpuscles in the vaginal fluid 

 during the short period of hemorrhage, following the third stage. From animal 

 1099 9 . re, red corpuscles. 



270 



