VA GINAL O VARIO TOM Y IN' THE COW. 119 



28, VAGINAL OVARIOTOMY IN THE COW. 



Objects. Increasing the fat or milk-producing qualities 

 and the cure of nymphomania. 



Instruments. Colin's scalpel, vaginal dilator, Miles' 

 spaying shears, spaying ecraseur. 



Technic. Confine the cow in the' standing position in 

 the stocks, secure the head firmly and pa,ss two boards be- 

 neath the abdomen and sternum to prevent lying down, and 

 a rope over the middle of the back to prevent arching of 

 the spinal column and straining. 



Wash and disinfect the tail and the perineum and flush 

 out the vagina with a .5 per cent, solution of carbolic acid 

 or lysol at a temperature of about 100° F. Insert the 

 vaginal dilator with one hand and push the prolongation at 

 the anterior end into the os uteri. With the other hand 

 elevate the handle of the dilator and depress and push for- 

 ward the uterus, thus rendering the roof of the vagina tense 

 and pushing it downward away from the rectum. Carry 

 the scalpel into the vagina with the right hand and resting 

 it in the oval of the dilator make an incision through the 

 roof of the vagina, beginning at a point 8 to 10 cm. posterior 

 to the OS uteri and extending backward on the median line 

 for a distance of 2 or 3 cm. Be careful to make the incision 

 entirely through the mucosa, muscle and peritoneum at the 

 first cut, since any failure to complete it tends to cause the 

 peritoneum to separate from the muscular coat and form 

 a pocket between them, while the serous membrane being 

 very elastic renders it difficult to complete the incision. 

 Introduce two fingers through the incision, and reaching 

 over the side of the vagina to the right or the left, the right 

 or left ovary respectively is recognized lying immediately 

 against the vagina somewhat below it, just at the anterior 

 border of the pubis, in a mass consisting of the cord-Hke 

 Fallopian tube and the fimbriae of its pavilion. The ovary 



