236 Cattle Problems. 



tated and swollen condition of contiguous parts. And 

 even if ova are impregnated, they may not adhere to the 

 walls of the breeding organ, as the latter are liable to de- 

 grees of ulceration, leading to the formation of pus, 

 while there is probably an escape of blood from the re- 

 laxed capillary walls into the genital and other cavities, as 

 shown in some cows, by bloodlike discharges. 



In fact, it is evidently impossible that abortment at an 

 advanced stage of pregnancy could take place without 

 producing a much disordered and injured condition of 

 structure in the uterus, and in the proximate ovarian 

 organs, and such conditions may continue for months. 



It may therefore be inferred that the disordered state of 

 the ovarian organs prevents impregnation, or that the dis- 

 ordered condition of the uterine walls prevents the ovarian 

 attachment in the uterus that is necessary to breeding, 

 either of these disordered conditions being sufficient to 

 prevent breeding. 



The discharge of blood through the genital passages, 

 that is sometimes met with in cows, occurring each time 

 they repeatedly come into heat after aborting, is evidence 

 of a greatly disordered condition of the genital organs and 

 vessels ; and the relaxed and weakened condition resulting 

 from abortion, and consequent engorgement, sufficiently 

 accounts for the escape of blood from its natural channels 

 into the genital passages ; aiid though we cannot of course 

 precisely explain how any such particularly disordered con- 

 dition, so evident and certain, in several proximate parts 

 and vessels is produced, it evidently results from the 

 greatly disordered condition of the uterus, brought on by 

 abortment, and the accidental engorgement of the numer- 

 ous uterine and ovarian blood-vessels. 



Accordingly, the secondary and accidental engorgement 

 and artery relaxation, which leads to unseasonable heat 

 and coupling, during a current breeding term, necessarily 



