322 Mr. W. Brande's Additional Observations 



same disposition to deposit the phosphates as formerly ; even 

 when the medicine was omitted, the sediment was small in 

 quantity, and not constant in its appearance. He was now 

 directed to omit the use of the citric acid, and occasionally to 

 eat oranges and other acid fruits. He continued this plan until 

 the beginning of April, 1813 ; his urine was then quite clear, 

 and he had no symptoms of disease. 



Case 3. In the month of October, 1811, a gentleman, thirty*- 

 four years of age, informed me, that he had observed a white 

 deposit in his urine, during the whole of the preceding summer. 

 He had taken considerable quantities of soda water, which he 

 thought increased the sediment, and alkahes in any other form 

 produced a very obvious aggravation of the complaint. 



His urine was at all times clear when voided ; but after a 

 few hours, a white powder was observed to separate from it, 

 and a film of crystalline matter formed upon the surface. The 

 former consisted of phosphate of lime and mucus, the latter 

 of the ammoniaco-magnesian phosphate. 



He was directed to take one drachm of muriatic acid pro- 

 perly diluted, at divided doses, during the day ; and it was 

 proposed that he should pursue this plan for a week ; but it 

 was discontinued on the third day on account of its acting 

 upon the bowels, and producing a frequent desire to make 

 water.* 



On the 10th of October, he was advised to take two large 

 glasses of lemonade daily, and to substitute claret for port 

 wine, a pint of which he was in the habit of drinking daily. 



• In this and other instances the sulphuric and nitric acids were occasionally sub- 

 ttituted for the muriatic ; but they were found equally inadmissible. 



