54 VETERINARY OBSTETRICS. 



reference can be made to the mechanical and medicinal 

 means described under that head. 



It may sometimes happen, that after all available 

 methods have been exhausted, the animal still 

 continues to strain and evert the vagina, and that 

 death, as a result, may appear imminent, so that 

 premature delivery has to be resorted to, to save the 

 life of the parent, and if the 260th day of pregnancy 

 has been reached, possibly the life of the young one 

 (Calf) also. After the os has been dilated, the 

 membranes may be perforated by the fingers. After 

 delivery, great care should be exercised, for some days, 

 to prevent subsequent inversion. In vaginal prolapse 

 in the Ewe, similar methods can be adopted to those 

 already described. A common custom with some is to 

 knot a portion of wool, from each side of the vulva, 

 together, to prevent, everslon. 



Hysterocele (Hernia of the Uterus). 



This condition has been observed in the Mare, 

 Cow, Ewe, Goat and Bitch. It may be due to rupture 

 of the musculo-fibrous floor of the abdomen, the 

 gravid uterus escaping into a sac formed by the 

 peritoneum and skin. In the Bitch, the womb is often 

 displaced before conception, the fcetus being developed 

 in the hernia. With the exception of the Bitch, in 

 which the hernia may be inguinal, it is always 

 accidental and ventral, and usually towards the inferior 

 portion of the abdomen. 



Its cause is generally violence, although it may 

 start from an umbilical hernia, or from natural or 



