lunk's test. 



Hydrogen sulpho- (a) Nitric acid, (b) 

 cyanid in urine. Sol. silver nitrate.(c) 

 Hvdrogen sulphid. 

 (d) Ferrous sulphid 

 (containing iron 

 oxid). (e) Sodium 

 hydrate (/) Hydro- 

 chloric acid. 



Prussian blue. 



Acidify 200 c.c. urine 

 with a; add b; fil- 

 ter ; decompose fil- 

 trate with c. Distil. 

 Add d and e ; warm ; 

 add/. 



lurexid-test. 



Uric acid. 



(a) Nitric acid, (b) 

 Ammonia. 



Beautiful red color. Cover substance or 

 residue on evapora- 

 tion with a ; evapo- 

 rate to dryness on 

 water-bath ; add b. 



iuscuius' test. 



Filter putrescent 

 urine, wash filter- 

 paper, stain with 

 turmeric and drv. 



Brown stain. 



Turns brown on being 

 dipped into a sol. of ■. 

 urea, and allowed to 

 dry. 



thol-test. 



Sugar in urine. 



See Alolisch's test. 



's reagent. 



Ammonium salts. 



gm., 

 Add 



Potass, iodid 5 

 hot water 5 cc. 

 mercuric chlorid 2.5 

 gm. in water 10 c.c. 

 To mixture add po- 

 tass, hydrate 16 gm. 

 in water 40 c.c. ; di- 

 lute up to 100 c.c. 



Yellow or reddish- 

 brown coloration. 



am's test. , Biliary' coloring- 

 matter. 



(a) Dilute sulphuric 

 acid. (*) Sol. of 

 sugar. 



Violet color. 



Extract with alcohol, 

 evaporate to small 

 bulk. To one drop 

 in porcelain dish add 

 one drop a and trace 

 b; warm. 



Lignin. 



(a) Aq. sol. of indol. 

 (A) Sulphuric acid. 

 (Spec. grav. 1.2.) 



Red color. Subject specimen to a 



for a few minutes ; 

 transfer to b. 



-test. 



Water. 



Nigrosin. 



Black color. 



Add piece of R. 



id-test. Albumin in urine. 



See /feller's test. 



cid-test. 



sid-test. 



Urea. 



(a) Alcohol (A) Con- 

 cent, nitric acid. 



Six-sided crystals Evaporate liquid to ! 

 of urea nitrate. syrupy consistence ; j 



extract with a; dis- I 

 til a off; dissolve 

 residue in water ; 

 add b, preferably un- 

 der microscope. 



Hydrocyanic acid. See Vortmann's test. 



s test. Acetone in urine, j (a) Sol. sodium nitro- 



i prussid. (*) Strong 



Rose-violet color. 



ammonia. 



To 30 c.c. urine add 4 Dilution may be 

 to 7 c.c. a and a few necessary to 

 drops A. bring out color. 



1 Biliary' coloring- Nitric acid, 

 matter. 



Play of colors. 



Dip filter-paper 

 liquid ; dry, and add I 

 R. 



ier's test. 



94 



Glucose in urine. I Bismuth subnitrate 2, Black c o 1 o r of To 10 parts urine add Del ica cy 0.1 per 



j sodicpotass.tartrate liquid or of the 1 part R., and boil. cent.; very reli- 



4, dissolved in sol. j ppt.ofphos- able. Albumin 



sodium hydrate (10: phates. must be removed, 

 gm. in 90 c.c. water), j 



