DISEASES OF THE URINARY ORGANS. 217 



a catheter by means of Reed's stomach-pump or a synnge, 

 then shake it up with the hand introduced through the rectum, 

 and allow the muddy liquid to flow out through the catheter. 

 Repeat this until the bladder is emptied and the water comes 

 away clear. 



Prevention. — The next point is to prevent its forming anew 

 by measures calculated to obviate urinary calculi in general. 

 Correct any fault in feeding — excess of beans, peas, bran, etc., 

 — and any disorder in the liver functions. Give abundance of 

 soft water, encouraging its ingestion by a fair supply of salt, let 

 the food be aqueous, consisting largely of roots, especially 

 carrots, and give daily in the drinking water i dr. caustic soda 

 or potassa, or common ashes from hard wood. A course of 

 bitters should also be given (cascarilla, columba, willow bark, 

 gentian, quassia, or others). 



