ACTION OF SEX HORMONES IN FOETAL LIFE 



429 



Fig. 7 Case 9. Reproductive organs of fertile free-martin 20 cm. long. 

 X f. The chorion of the twins was single with a narrow connecting part be- 

 tween the two halves devoid of cotjdedons for a space of about three inches. 

 No record of vascular connections, which were presumably lacking. 1, ovary; 

 2, left horn of uterus; 3, round ligament; 4- ureter; 5, vagina; 6, urinogenital 

 sinus; 7, clitori.s; 8, umbilical artery; 9, neck of allantois; 10, fallopian tube. 



