214 SYSTEMATIC TESTING OF URINE. 



18. Uric acid: amount. 

 Experiment 358. 



19. Total nitrogen : percentage and amount in twenty- 



four hours. 

 Experiment 350. 



20. Chlorin: amount. 

 Experiments 365 or 366. 



21. Phosphoric acid: amount. 

 Experiment 370. 



22. Identification of sediments if present. (Page 



199.) 



I. UNORGANIZED. 



(A) Crystalline. 

 Uric acid. 

 Calcium oxalate. 

 Calcium phosphate. 

 Triple phosphate. 

 Other rarer compounds. 



(B) Amorphous. 

 Urates. 

 Phosphates,, etc. 



II. ORGANIZED. 



Pus. 



Mucus. 



Blood-corpuscles. 



Bacteria. 



Spermatozoa. 



Epithelium: kind and probable source. 



Casts: kind and probable source. 

 The proof of the presence of any abnormal constit- 

 uent should not be allowed to rest upon one test, but sev- 

 eral should be tried. 



