94 



INTERNAL SECRETIONS OF THE OVARY 





,1 -" '7 ' -"'^ "^" '*V - *V.l^^i?3r"! 



Fig. 42. — Uterus and Vagina of Ovariectomized Mouse 

 injected with qestrin, showing the difference in thres- 

 HOLD VALUE FOR THE TWO ORGANS, {a) uterus with no symptoms 

 of oestrus, (b) vagina with typical oestrous cornification. 



