168 



Animal Castration 



vagina and place knife — with bladed guarded — against roof of 

 vagina immediately over the cervix. (See Fig. 142.) 



6. With left hand raise handle of spaying speculum and make 

 downward and forward pressure sufficient to stretch walls of 

 vagina taut. 



7. Unguard blade of knife and thrust it through the vaginal 



i 



-',j>» 



Fig. 142— Making Incision Through Vaginal Roof. A, Right Arm; B, Uterus; C, 

 Rectum; D, Vulva; E, Spaying Speculum; F, Vagina; G, Cervix; H, Urinary Bladder; 

 I, Broad Ligament; J, Rectum; K, Left Hand; L, Ovary; M, Point of Knife; N, Perfora- 

 tion in Roof of Vagina. 



