242 Veterinary Medicine. 



leaves of buchu, or piperazine, which may improve the tone of the 

 secretory elements. The most promptly effective of these agents is 

 pilocarpin (Friedberger andFrohner), but it has the serious draw- 

 back of inducing profuse and dangerous depletion and debility. 

 Yet in careful hands, and with good cardiac tone, it may often be 

 used to advantage. 



Fomentations over the loins, warm baths and mustard embro- 

 cations, may at times be beneficial. Attempts have been made to 

 check the hyperplasia by the use of arsenic, mercury or the com- 

 pounds of iodine, but their use in such cases is based on theory 

 rather than accomplished results. 



HYPERTROPHY OF THE KIDNEY. 



Hypertrophy of both kidneys has not been recorded in do- 

 mestic animals. On the other hand the extraordinary develop- 

 ment of one in compensation for the loss or atrophy of the other 

 is not uncommon. In this the organ follows the general law of 

 adaptation, seen in the double • symetrical organs (testicle, etc.) 

 and the more so that its functional activity is indispensable to life. 

 Among causes are : blocking of an ureter by calculus, worms, 

 neoplasm, nephritic abscess, gangrene, etc. The enlargement 

 of the remaining kidney is a vicarious act and essentially a 

 physiological one. 



If compensation is perfect, it may be impossible to detect symp- 

 toms apart from those of the primary disease. 



Prognosis. Ufe is endangered in case of any subsequent kid- 

 ney disease. 



