COLICS OF THE SOLIPED 19 



differentiation of peritonitis from true colic is not always 

 possible during life and especially is this the case during 

 the earlier periods of the attack. 



Differentiation from Disturbances of the Urinary 

 System 



For distinguishing those false colics attributed rightly 

 to troubles within the urinary system, viz. : acute 

 nephritis, calculi of ureters, urethra or bladder disturb- 

 ances, recourse must be had to the evidence collected 

 through manual exploration through the rectum, which 

 in severe or uncertain colics is never omitted by the 

 painstaking diagnostician; furthermore, catheterization 

 will often uncover a hidden diagnosis. 



During the manipulative work one must not fail to 

 take cognizance of the value of certain features as ac- 

 cumulative evidence ; I refer especially to a degree of 

 sensitiveness of the kidneys or bladder, evidenced by 

 flinching on pressure; the amount of urine within the 

 bladder considered jointly with history of manner of void- 

 ing, whether free or limited micturition or constant 

 straining but suppression; information gained through 

 locating foreign substances that may impede one or both 

 of the ureters, or the urethra or lie in the bladder, like- 

 wise a history of periodicity, the passing of blood-dis- 

 colored urine, fecal movements and chemical or micro- 

 scopical examination of the fluid passed. 



Differentiation from Hepatic Disease 



Disturbances of the liver in the horse have been 

 given little heed in veterinary medicine possibly on ac- 

 count of the indefinite character of the symptoms and 



