EMBRYOLOGY, IMPllEGNATION, CONCEPTION. 41 



reach the egg, it is of obvious advantage jjosi- 

 tively to place them there. The operation con- 

 sists merely in taking up the spermatic fluid in 

 the syringe (so-called impregnator) or capsule 

 and depositing it within the uterine cavity. 

 Once there the spermatozoa may safely be trust- 

 ed to meet the egg. Mares can easily be got 

 with foal yet never see the horse. Two or 

 three mares may be impregnated from the same 

 service, as the amount of spermatic fluid ejacu- 

 lated by the horse is abundant. 



In order that the operation may be deftly 

 performed, it is necessary that the womb should 

 be open. If on examination it is found to ])e 

 closed, open it as described. After copulation 

 the withdrawal of the horse will bring much of 

 the spermatic fluid back into the depression in 

 the floor of the vagina to which' reference has 

 already been made. If the nozzle of the syringe 

 is inserted in the vagina at this point a suffi- 

 cient amount of the fluid may be drawn up into 

 it. If it is desired to operate on the mare that 

 has just been served, conduct the nozzle of the 

 syringe with the hand into the neck of the 

 womb, press the bulb, ejecting its contents into 

 the womb, and the job is done. If it is desired 

 to impregnate a second or a third mare from 

 the one service of the horse, have her held 

 handy by a sensible attendant. Blunderers are 

 little use for this pui-pose. "Wlien service has 

 been accomplished to the first mare by the liorse 



