442 



FRANK R. LILLIE 



Fig. 21 Urinogenital system of sterile free-martin 21.8 cm. long. X f. From 

 two-sexed pair 41. Exceedingly small gonads drawn close to entrance of the 

 saccus vaginalis. 1, gonad; 2, Wolffian duct; 3, giil)ernaculum; 4, urinogenital 

 sinus; 5, clitoris; 6, allantois. 



Fig. 22A Urinogenital system of sterile free-martin 22.5 cm. long. X |. From 

 two-sexed pa'r 4. The right gubernaculum is evaginated into the body cavity. 



22B. Part of 22A. X | with the right gubernaculum turned over to show tlie 

 gonad and Wolffian duct. /, kidney; 2, gonad; S, Wolffian ducts; 4, gubernacu- 

 lum; 5, allantois; 6, clitoris; 7, umbilical artery; 8, ureter. 



