PLATE 7 
EXPLANATION OF FIGURES 
15 Mucosa of the uterine cornu during stage O. X 365. Note the clear- 
cut basement membrane and high columnar cells. 
16 Uterine mucosa during early stage Mz. X 550. The distinct basement 
membrane figured in 15 has been replaced by a light pink staining zone con- 
taining leucocytes. 
362 
