472 A TEXTBOOK OF PHYSIOLOGY 



urate, usualh* associated with triple phosphate crystals and 

 bacteria 



3. Calcium Carbonate. Occasionally in human urine, but com- 

 monly in the urine of herbivora. In human urine, generally as 

 amorphous granules; more rarely, as in horse's urine, as dumb-bells 

 or spheres (Fig. 225). They are easily soluble, with effervescence, in 

 acetic acid. 



In the urine there may also occur epithelium from the kidney, 

 bladder, and urinary passages, and in women from the vagina. In 

 pathological urine there may occur 



1. Red blood corpuscles, either normal, swollen, or crenated. 



2. White corpuscles, or " pus " corpuscles. 



3. Fatty globules in ' ; lipuria." 



4 Various forms of ; ' casts " of the kidney tubules. 



