URINE. 251 



The urine during the convalescence of the thirty-four cases, 

 was- usually pale and transparent; but in some it remained 

 turbid or sedimentary for a considerable time after the termina- 

 tion of the fever. Albumen was only observed in one instance. 



In these thirty-four cases the urine was acid during the whole 

 course of the disease, and remained so during convalescence, 

 except in two cases, in which it was invariably strongly alkaline, 

 light, watery, pale, and transparent ; the persons from whom 

 the urine, in these cases, was derived, were very weak, and in 

 a state of well-marked anaemia, having had the fever very se- 

 verely, and having been repeatedly bled. The urine in these 

 cases did not appear to have been retained in the bladder 

 longer than usual. After several days, it became neutral; it 

 then became gradually more deeply coloured, and ultimately 

 regained its acid reaction. 



With respect to the seven fatal cases, the urine in one re- 

 tained its normal appearance; in four it assumed from the com- 

 mencement till death a deep colour, and became turbid from 

 an excess of uric acid which deposited itself; and in all the seven 

 was invariably acid. 



I shall now communicate the results of my own analyses of 

 the urine in typhus, which enter more into minutiae. 



I have made several analyses of the urine in abdominal ty- 

 phus, but have only determined with accuracy the most impor- 

 tant of the constituents. 



The urine in analysis 108 was taken from a man aged 30 

 years, who had been dangerously ill for three weeks; delirium, 

 subsultus tendinum, pulse frequent and small ; the urine was 

 moderately dark, turbid without a sediment, and strongly acid. 

 He died two days afterwards. It is worthy of remark that the 

 urine had on one occasion, about eight days before death, an 

 alkaline reaction; it returned to its acid condition the fol- 

 lowing day. Analysis 109 represents the urine of a typhus 

 patient, who was lying in a state of deep coma; it was pale, 

 and had an acid reaction. Analysis 110 represents the urine 

 of the same patient three days afterwards, when he was in a 

 state of great general debility; it was pale, transparent, and 

 slightly acid, but after some time became alkaline, and de- 

 posited a sediment of earthy phosphates. The patient subse- 



