120 THE DISEASES OF THE HORSE. 



dilute copper sulphate. Buchu, bearberry, eucalyptus in 

 chronic vesical catarrh. 

 For doses, see pages 13 to 29. 



Suppression and Retention of Urine.— Suppression 

 signifies non-secretion of urine ; retention inability to pass 

 urine. Suppression of urine may result from inflamma- 

 tion of the kidneys, or anything else that prevents the 

 performance of their functions. Eetention of urine may 

 result from spasm or contraction of the neck of the blad- 

 der, the lodgment of stones, paralysis, &c. (Percivall.) 



See ' Nephritis ' and ' Cystitis/ 



Cysts in the Kidneys are not rare. A fibrous cyst, 

 as large as a fist, discovered by Percivall, contained eight 

 ounces of black fluid. The fluid was composed of the 

 different elements of the blood, particularly the coloring 

 matter. Usually, however, they contain singly the watery 

 parts of the blood. 



Enlargement of the Kidneys (one or both) is not 

 unusual. In a recorded case one kidney weighed 24 lbs., 

 the other 27. In another case the right kidney "was 

 supposed to weigh upward of 112 lbs." The left was 

 healthy, though rather larger than natural. 



Inversion and Protrusion of the Bladder sometimes 

 occurs in foaling. If the protruded parts cannot be re- 

 duced and returned, perhaps a ligature may be success- 

 fully used. Send for a veterinarian. 



