oF 
ruptured by compression. In performing this operation, the 
operator first grasps the ovary per rectum and draws it back 
over the roof of the vagina. The other hand then grasps 
the ovary, through the wall of the vagina and holds it 
securely. The bistoury is then carefully introduced guarded 
along the arm and hand, until the ovary is reached at the 
desired point, when the guard is removed and the blade of 
the instrument inserted. 
LITERATURE. 
E. Zschokke: Die Unfruchtbarkeit des Rindes, ihre Ursache und Bekampfung. 
Ziirich 1900. 
K. Nielsen: Maanedsskrift for Dyrleger. Vol. 19 and 20. 
E. Hess: Die Sterilitat des Rindes. Bern 1907. 
Tuff: Maanedsskrift for Dyrleger. Vol. 18. 
Franks Geburtshilfe fiir Tierarzte, edited by Albrecht. 
Th. Kitt: Lehrbuch der Fiathologischen Anatomie, 
Broholm: Maanedsskrift for Dyrleger. Vol, 7. 
W, L. Williams: Veterinary Obstetrics. 
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