THE TJRO-GENITAL SYSTEM 



177 



Fig. S5- 



A. Spermatozoa of a cock, a. The spermatozoa, b. The head, t, The tail. 



B. The oviduct of a hen removed. A, The oviduct. B, The superior liga- 

 ment. C, The inferior ligament. Note the oviduct thrown in folds and the 

 anastomosing blood-vessels. 



12 



