230 



OOPHORECTOMY — CHARLIEli's OPERATION. 



of these men holds the tail whilst both grasp a round pole passed 

 under the cow's body to prevent it lying down. In case of severe 

 straining, on the other hand, they place the pole on the cow's back, 

 on which they press. The rectum is emptied before operation. For 

 this purpose Hoffmann injects six fluid drachms of glycerine. The 

 instruments are — (1) a vaginal speculum ; (2) forceps for torsion 

 of the ovaries, or a metallic thumb-stall for scraping through their 

 attachments, or, again, a long ecraseur ; (3) a bistouri cache. 



All ordinary antiseptic precautions should be observed, the vulva 



Fit:. 253. — Longitudinal section in a vertical plane through the urino- 

 genital organs of a mare. 

 o. Left ovary, b.u.l. Broad uterine ligament, l.h. Lell horn of tin 

 uterus. XT. Uterus, v. Vagina. BL. Bladder. R. Rectum, p. Section 

 through pelvis, a.w. Abdominal wall. E.s. Excavatio superior. E.B. 

 Excavatio recto-vaginalis. e.v. Excavatio vesico-vaginalis. e.i. Ex- 

 cavatio inferior. 



and vagina being washed with soap and water and freely rinsed with 

 a disinfectant. Hurliman recommends injecting a 2 per cent, carbolic 

 solution into the vagina and afterwards drying the parts villi 

 sterilised cotton wool. One per thousand sublimate solution has 

 been recommended for this purpose, but it causes irritation of the 

 mucous membrane and straining, both of which interfere with 

 operation. Needless to say the hands and instruments must be 

 carefully disinfected. 



The vaginal speculum is introduced in the closed condition, and 

 opened by screwing the handle. The right hand holding the closed 



