308 THE SECRETIONS: 



In diabetes chylosus the urine contains a very large quantity 

 of albumen and fat, so as to give it almost a milky appearance. 

 I have already alluded in general terms to this form of urine, 

 and I have only further to add that, according to Chevallier, it 

 comes on after the use of mercury, and, associated with hsemat- 

 uria, is endemic in the Isle of France ; it has also been several 

 times observed in Europe. 



Willis remarks that these disturbances in the renal secretion 

 frequently occur without causing any degree of constitutional 

 disease, and often without any detriment whatever to the general 

 health. Slightly removed from this form of urine, is that in 

 which a protein-compound approximating to a modification of 

 casein, or where actual milk (milk-metastasis,) is discharged with 

 the urine. 



We have lastly to mention a form of chylous urine in which 

 fibrin and albumen, but no blood-corpuscles, are discharged. 



Abernethy observed urine of this sort in a woman, and Prout 

 has described several cases. It coagulates spontaneously, and 

 forms a mass which, as Abernethy remarks, might be served up 

 at table for blanc-mange. 



Dropsy. 



During dropsical affections the urine often differs considerably 

 from its normal state. Its quantity is generally less than in 

 a state of health, and it presents various peculiarities in quality. 

 It is sometimes dark, very acid, rich in uric acid, and, according 

 to Schonlein, in urea also; sometimes it contains blood; in 

 other cases it is pale and opalescent, resembling anaemic urine, 

 and not unfrequently containing a considerable amount of 

 albumen ; but this substance is by no means invariably present 

 in the urine of dropsy. 



In hydrothorax the urine, according to Schonlein, is secreted 

 scantily ; it is of a dark purple red colour, and presents a fiery 

 appearance; during the approach of recovery it becomes more 

 abundant, and, especially when the disease is complicated with 

 inflammation of the pleura or lung, throws down precipitates of 

 a reddish-yellow or brick-dust colour, which are frequently mixed 

 with purulent mucus. 



In chronic hydrothorax, a thick, fiery-red urine is generally 



