IN THE KIDNEY. 33 



instance there were some slight traces of albumen in 

 the urine. 



B. I then, in two small weak animals, tied the 

 abdominal aorta below the origin of the renal arte- 

 ries. In one instance the urine was slightly albumi- 

 nous. 



C. As I did not by these measures, used singly, 

 obtain very satisfactory results, I then wished to as- 

 certain whether the simultaneous performance of both 

 operations in animals of greater strength, would not, 

 by the conjoint influence of the physical and physio- 

 logical determination of blood to the remaining kid- 



O O 



iiey, induce the presence of albuminous matters in 

 its secretion. I performed seven experiments. The 

 three first did not succeed ; but a glance at the 

 particulars of each, as given in the Appendix, will, I 

 think, suggest a satisfactory explanation of their 

 failure. And any uncertainty which these negative 

 results may have created as to the truth of the prin- 

 ciple sought to be established in this part of the 

 memoir, must be in a great measure removed by a 

 careful perusal of the four last experiments. Thus, 

 in 



The animal living 



Exp. 4. 18 hours 



The urine contained blood, 

 and the liquid portion 



albumen. 

 5. About 2 days. . It was highly albuminous. 



{A coagulum of blood, 

 another of fibrine, and 

 was highly albuminous. 



7. 2 hours Blood and albumen. 



D 



