Royal Society* 303 



blood. Specific gravity =1015*6; the precipitate by alcohol = 14*1 

 grs. per 1000 grs. of urine. 



At 11 a.m., the urine was chylous or white from fatty matter. 

 Further experiments on the influence of rest and motion in less- 

 ening or increasing the albumen in the urine previous to food are 

 then given. 



On five different mornings, by rising early or late, and by col- 

 lecting the precipitate from the urine by alcohol, the influence of 

 rest and motion was determined. The author states that he could 

 fix beforehand whether the urine should be albuminous or not, by 

 directing the patient to get up, or to lie still. 



The patient was bled and the serum was opalescent, but did not 

 clear with aether: the blood contained no excess of fat. 1000 parts 

 of blood gave — 



2*63 grs. fibrine. 

 159*3 grs. blood-globules. 

 78*1 grs. solids of serum. 

 240*03 grs. total residue. 

 759*97 grs. water. 



The urine made the same day was examined at different hours; 

 that made immediately before the bleeding was quite white, and that 

 made an hour and a half afterwards was very milky also. Specific 

 gravity =1018. 1000 grs. of urine gave — 



56*87 grs. total residue. 

 10*80 grs. total ash. 

 13*95 grs. albumen. 

 7*46 grs. fat. 

 24*06 grs. urea, &c. 

 *60 gr. loss. 

 943*13 grs. water. 



The conclusions from these experiments are,— 



1. That so-called chylous urine, besides fat, may contain albumen, 

 fibrine, and healthy blood-globules. 



2. That, although the fat passes off in the urine after food is taken, 

 yet the albumen, fibrine and blood-globules are thrown out before 

 any food has been taken. During perfect rest the albumen ceases 

 to be excreted ; and it does not appear in quantity in the urine even 

 after food is taken, provided there is perfect rest. A short time after 

 rising early the urine may coagulate spontaneously, although no fat 

 is present ; and this may happen previous to food, when the urine is 

 free from fat. 



3. Though the urine made just before and a short time after 

 bleeding was as milky as it usually was at that hour of the day, yet 

 the serum of the blood was not milky : it did not contain a larger 

 quantity of fat than healthy blood does. 



The general results are,- — 



1. That the most important changes in the urine in this disease 

 take place independently of the influence of digestion. 



2. That the urine in one respect only resembles chyle, and that 



