428 



FRANK R. LILLIE 



Fig. 6 Case 40. Reproductive organs of fertile free-martin; 10.2 cm. long. 

 X |. In this case there was no fusion between the two chorions, and the repro- 

 ductive system is normal. See figure 10 for male twin. 1, ovary; ^, remains of 

 Wolffian body; 3, MiiUerian duct; 4, umbilical artery; 5, vagina; 6, lu-ino-genital 

 sinus; 7, clitoris; 8, neck of allantois; 9, ureter. 



