320 THE SECRETIONS: 



Now the 40 grains of iodide of potassium and half grain of 

 iodine may be regarded as equivalent to 40*626 grains of the 

 iodide alone (for iodine is always in a state of combination when 

 it occurs in the secretions), and consequently the whole of the 

 iodide was removed by the kidneys, with the exception of nearly 

 two grains which were distributed partly to the saliva, sweat, 

 nasal mucus, &c. and partly remained in the blood.] 



Skin-diseases. 



[The urine in a case of urticaria tuberculosa has been ana- 

 lysed by Scherer. The patient was a young man who likewise 

 suffered from rheumatism. The urine was discharged in very 

 small quantity, often not more than five or six ounces in forty- 

 eight hours. It was clear, of a brownish-red colour, very acid, 

 and its specific gravity was 1028. 



It contained in 1000 parts : 



Water . . . .931-58 



Solid residue . . . 68-42 



Urea 30-46 



Uric acid . 



Alcohol-extract with much lactic acid 



Water-extract 



Alkaline salts 



Earthy phosphates 



0-74 

 21-24 

 4-92 

 8-03 

 2-02 



The most remarkable points in the constitution of the urine 

 are the large amount of earthy phosphates, and the excess of 

 free acid. 



Heller 1 has published three analyses of the urine in cases of 

 herpes zoster. 



1. A boy aged 8 years; eruption on the right side, no 

 fever, urinary secretion abundant. The urine was of a pale 

 yellow colour, rather turbid, rapidly became putrid, and de- 

 posited a sediment of beautifully-formed crystals of ammoniaco- 

 magnesian phosphate. 



The urine was faintly alkaline on emission, and its specific 

 gravity varied from 1014 to 1015. 



1 Archiv, vol. 1, pp. 39-43. 



