326 THE SECRETIONS: 



If we consider that the alkaline carbonate in the ash corre- 

 sponds with the hippurate in the urine, then 1000 parts of urine 

 must have contained 12*886 of anhydrous hippuric acid, and 

 100 parts of solid residue 25-8 of the same constituent. During 

 this period the only food taken by the girl was bread, apples, 

 and water ; she, however, gradually resumed her ordinary diet, 

 and the excess of hippuric simultaneously disappeared.] 



Urostealith in urine. 



[Heller 1 has recently announced the discovery of a new con- 

 stituent of urinary calculi, to which he has given the name 

 urost eolith. It is soluble in carbonate of soda ; and when that 

 remedy is administered, urostealith in a state of solution is found 

 in the urine. 



The patient was a man of tolerably good constitution, aged 

 24 years ; he complained of pain in the region of the right kid- 

 ney, and difficulty in micturition, occasionally passing small 

 elastic soft concretions. These were examined by Heller, and 

 found to be perfectly soluble in alkalies, with which they formed 

 a soap. 



Analysis of the urine before the administration of carbonate 

 of soda. 25th Feb. The urine had a light yellow, whey- 

 like appearance, no odour, and deposited a sediment of ammo- 

 niaco-magnesian phosphate. Fat-globules were detected under 

 the microscope. The reaction was neutral ; the specific gravity 

 1017-5. It contained in 1000 parts : 



Water ..... 965-800 



Solid constituents .... 34-200 



Urea ..... 12-631 



Fat ..... 0-320 



Extractive matters with much hydrochlorate of ammonia 8-569 



Fixed salts .... 12-680 



consisting of: 



Earthy phosphates . . . 2-040^1 



Chloride of sodium . . . 0-163 I 19>Aftn 



Sulphate of potash . . . 2-296 f 



Basic phosphate of soda and peroxide of iron . 8-181 J 



Moreover, every 1000 parts of urine threw down 0-62 of 

 pure ammoniaco-magnesian phosphate. Not a trace of uric 

 acid could be detected. 



1 Archiv fur phys. und patholog. Chemie, vol. 2, p. 1. 



