DISEASES OF THE URINARY ORGANS. 105 



3. Nephritis. 



Inflammation of the kidneys; renal inflamma- 

 tion. 



This is a secondary condition, following the in- 

 vasion of parasites; infectious diseases; injuries; 

 exposure to cold and rain, and poisonings. 



The symptoms are mainly associated with the 

 primary disorder, and as urinary analyses are im- 

 practical in routine work with sheep, very little 

 can be done. 



The treatment is symptomatic and not very suc- 

 cessful. 



4. Rare and Unimportant Diseases of the Urinary 

 Organs. 



Occasionally diseases of the urinary tract other 

 than those mentioned in the foregoing are found 

 in sheep. Usually they are not recognized until 

 after death. Among these may be mentioned cys- 

 tic kidneys, renal calculi, cystitis, and tape worm 

 cysts the Echinococcus polymorphous. 



