186 THE MICEOSCOPIST. 



3. Precipitate formed on boiling; soluble in nitric acid. 

 Excess of Earthy Phosphates. 



4. Precipitate formed on boiling ; insoluble in nitric acid. 

 Albumen. 



5. Precipitate formed by nitric acid. Excess of Uric Acid, 

 or Albumen. 



6. Concentrated urine yields needle-shaped crystals with 

 hydrochloric acid. Hippuric Acid. 



If the urine is highly colored, 



7. Dark coagulum formed on boiling. Blood ? 



8. Red color with hydrochloric acid. Excess of Coloring 

 Matter. 



9. Pink precipitate with warm solution of urate of ammonia. 

 Purpurine. 



10. Change of color with nitric acid. Biliary Matter. 



TABLE III. 



FOR MICROSCOPICEXAMINATION OF DEPOSIT. 

 If Crystalline. 



1. Lozenge-shaped, &c. Uric Acid. 



2. Stellas, or three-sided prisms (after saturating with am- 

 monia). Triple Phosphate. 



3. Octahedra, or dumb-bells. Oxalate of Lime. 



4. Rosette-like tables. Cystine. 



If Amorphous. 



5. Soluble when warmed. Urate of Ammonia. 



6. Soluble in acetic acid. Phosphate of Lime. 



7. Yellowish grains. Urate of JSoda ? 



