42 EXPERIMENTS ON THE CIRCULATION 



of lymph : tins organ weighed 90 grs. ; the weight 

 of the right one being 50 grs. 



Exp. 6. The left renal vein of a small healthy 

 animal was tied, and then lacerated on the renal 

 side of the ligature. "\Yhilc bleeding freely, the 

 organ was returned, and the animal killed at the 

 end of an hour. The urine in the bladder was not 

 albuminous; but the upper part of the ureter con- 

 tained a column of lymph, which, at its lower end, 

 was slightly tinged with blood. The left kidney was 

 considerably enlarged, but the precise weight was 

 not taken. 



Exp. 7. In a young healthy rabbit the coats of 

 the left vein were pinched up by a forceps, and so 

 tied that the calibre of the venous canal would be 

 considerably diminished. The animal was killed at 

 the end of forty minutes. The bladder contained 

 about a drachm of urine, which was not albuminous; 

 but on further examination, the reason of this was 

 apparent; for the left ureter was found completely 

 obstructed by a coagulum of blood, behind which a 

 quantity of bloody urine had accumulated. Some 

 lymph had also been effused beneath the lining 

 membrane of the pelvis. The right kidney weighed 

 35 grs.; the left, 68 grs. 



Exp. 8. The left kidney being exposed in a healthy 

 young rabbit, the coats of the vein were pinched up 

 by a forceps, and so tied as materially to diminish 

 the calibre of, without completely obstructing, the 

 venous canal. The organ was then returned, and 

 the animal killed at the end of four and a hall' days. 

 The bladder contained a little muddy urine, which 



