268 MANUAL OF EQUINE MEDICINE. 



The poultices and fomentations may be medicated by the 

 addition of belladonna or digitalis, with great advantage. 



The diet should be laxative, consisting of linseed and 

 oatmeal gruel, and bran mashes. 



AVhen the acute symptoms have abated, salts of iron and 

 vegetable tonics are indicated. 



LARDACEOUS DEaENERATION OF THE KIDNEY. 

 — Lardaceous degeneration is very rare in the kidneys of 

 the horse. 



On pathological grounds it should be distinguished from 

 chronic nephritis. The appearance of the kidney resembles 

 that of other organs similarly affected. 



MELANOTIC TUMOURS AND HYDATIDS.— Mela- 

 notic tumours are sometimes, though rarely, found in the 

 kidney of the horse. 



Hydatids of the echinococcus have been met with in the 

 kidney, though they are of far commoner occurrence in the 

 liver.* 



RENAL AND URETERAL CALCULI— Eenal calculi 

 are rather rare in the horse, though they are met with in this 

 animal more frequently than in any other. Ureteral calculi 

 are of such rare occurrence as to require no special descrip- 

 tion here. 



Renal calculi are of a brownish-white, sometimes bluish 

 colour, of irregular ovoid or nearly spherical shape, often 



* About a month or two ago we had under treatment an aged cart- 

 horse suffering from chronic renal disease. The horse had great 

 difficulty in passing water, and this contained abundance of pus and 

 mucus. After death the post-mortem examination revealed about 

 thirty hydatid cysts in the right kidney. They varied considerably in 

 size, one being as large as a cocoanut ; the others varied from the size of 

 a walnut to that of a pea. In the left kidney there were also more than 

 a dozen of these cysts, which were for the most part of less size. There 

 were none present in the liver, though a great number were found in 

 the substance of the psoas muscle. The right kidney was considerably 

 atrophied. 



