PLATE 10 
EXPLANATION OF FIGURES 
21 Large follicle (nearly rupture size) in an early stage of atresia. XX 125. 
Several follicles in this set are apparently normal. At right, a medium-sized 
follicle containing two ova. 
22 Ovary of an early M; stage. 58. In upper right field is newly forming 
corpus luteum, not yet redistended. At lower left is one fully redistended. The 
age of these corpora is estimated at less than seven hours. _ 
368 — 
