C. U C. p. ALUMNI JOURNAL 



87 



only in one instance did he find crystals 

 of this substance in the samples ex- 

 amined. There were numerous instances 

 where deposits simulated in appearance 

 tyrosin. Further examination, however, 

 proved the fallacy of this diagnosis. In 

 the one undoubted case the urine of the 

 patient, upon arrival of the baths, was 

 brown-yellow in color, and contained 

 traices of both albumin and sugar, 

 Microscopically crystals of uric acid 

 and calcium oxalate were shown to 

 be present, as were likewise epithelial 

 cells, leucocytes, and hyaline and granu- 

 lar casts. After lo days of treatment, 

 all normal constituents of the urine were 

 eliminated in increased quantity, except- 

 ing urea. Of the latter 1.81 grammes per 

 liter was found. The sediment was 

 abundant and heavy, and contained a 

 considerable quantity of tyrosin crystals, 

 besides numerous crystals of calcium 

 oxalate. Epithelial cells were scant, and 

 the casts had disappeared. The tyrosin 

 crystals occurred in the form of long, 

 yellow-white, silky needles, some of 

 which were grouped in bundles, while 

 others were single. The crystals dis- 

 solved readily in alkalies and in min- 

 eral acids, and responded to the reaction 

 of Piria. 



Paralan. 



Paralan is the name given by C. Schna- 

 bel, to a substitute for lard, which is 

 claimed can be used with success as a 

 vehicle in the manufacture of zinc oxide 

 and potassium iodide ointments. Its 

 composition is as follows : anhydrous 

 wool-fat, 20 parts, solid paraffin. 20 

 parts, and liquid paraffin, 60 parts. The 

 fused mixture is stirred until cold. Slight 

 variations from these quantities will fur- 

 nish a vehicle of firmer or softer consist- 

 ence. 



Detection of Veronal in Cases of 

 Poisoning. 



W. Maradie succeeded in detecting the 

 presence of veronal in the stomach and 

 urine of a patient who was removed to 

 a hospital in an unconscious condition. 

 The stomach washings were acidified 

 with hydrochloric acid and shaken out 

 with ether. The residue was then 

 treated with cold absolute alcohol, and 

 after vaporization of the alcohol, treated 

 with solution of sodium hydroxide. The 

 treatment with ether and alcohol was 

 repeated. The alcoholic solution treated 

 with alcoholic potash developed the odor 

 of ammonia. Treated with sulphuric 

 acid, the odor of acetic and butyric acids 

 developed-. xA.nother portion of the 

 alcoholic solution vaporized to dryness, 

 upon addition of Millon's reagent and 

 nitric acid yielded a gelatinous precipi- 

 tate, soluble in nitric acid, but insoluble 

 in Alillon's reagent. The color of the 

 urine was orange-yellow, and contained 

 neither albumin nor glucose. After acid- 

 ulating, the urates were precipitated by 

 addition of calcium chloride, and the 

 urine then treated with ether and abso- 

 lute alcohol as before. The detection 

 of veronal is accomplished as above 

 described. 



Adulterated Oil of Lemon. 



A gross adulteration of oil of lemon is 

 made known by Lauffs, in Ztschr. f. 

 oeffentl. Chem. 18,438. The sample was 

 found to contain about 50% of liquid 

 paraffin and considerable quantities of oil 

 of turpentine. It was sold for 7.95 M. 

 per kilo, with the statement that the mar- 

 ket price of this oil was continually ad- 

 vancing. 



