426 



Diseases of the Genital Organs 



sterile. They are to be differentiated, so far as my collection indi- 

 cates, by the fact that in the cow hydrosalpinx usually involves the 

 entire length of the oviduct and presents the other characters de- 

 scribed under that heading. The parovarian cysts are usually small 

 — much smaller than the hydrosalpinx generally — and can be picked 

 up in the mesosalpinx. Careful palpation should recognize the 

 healthy tube not far away, enabling one to differentiate the two 

 structures. 



B. Tubal Infections 1 



In cattle the diseases of the oviducts constitute a very fer- 

 tile cause of sterility and play an unknown role in the oc- 

 currence of abortion. The oviducts constitute highly com- 



PlG. 1 j8 Cross Section of Normal Oviduct Near the Ampulla. 

 Showing Uk- Number and Complexity of the Mucous Folds. 



plex anatomo-physiologic barriers between the peritoneal 

 and uterine cavities. Technically, the peritoneal cavity of 

 the female communicates with the exterior through the 



r the normal and pathologic histology and for the bacteriology 

 of the oviducts, I am indebted chiefly to the work of Dr. Herbert L. 

 Oilman, graduate student, and to my colleague, I>r. C. M. Carpenter. 



