EXAMINATION OF URINARY DEPOSITS. 185 



TABLE I. 



FOR THE CHEMICAL EXAMINATION OF URINARY 

 DEPOSITS. 



1. The sediment dissolves when warmed. Urate of Am- 

 monia. 



2. Not soluble when warmed, but soluble in acetic acid. 

 Earthy Phosphates. 



3. Insoluble in acetic, but soluble in dilute hydrochloric 

 acid. Oxalate of Lime. 



4. Insoluble in dilute hydrochloric acid. Purple with nitric 

 acid and ammonia. Uric Acid. 



If neither of these, it may be, 



5. Greenish-yellow deposit, easily diffused on agitation. 



6. Ropy and tenacious. Mucus ? 



7. Red or brown; not soluble when warmed; the fluid por- 

 tion coagulable by heat and nitric acid. Blood ? 



8. Soluble in ammonia; the solution leaving, on evaporation, 

 hexagonal crystals. Cystine f 



9. Yellowish sediment, soluble when warmed. Urate of 

 Soda f 



10. Ether yields, after agitation, an oily or fatty residue. 

 Fatty Matter. 



11. Milky appearance. Chylous Matter. 



TABLE II. 



FOR THE EXAMINATION OF THE CLEAR LIQUID 

 PORTION. 



1. Crystals with nitric acid. Excess of Urea. 



2. Fermentation, or Trommer's test. Sugar. 



16* 



