IN THE KIDNEY. 43 



was faintly albuminous. The tubular portion of the 

 right kidney was somewhat redder than usual. The 

 left kidney was found enclosed within a perfect cyst 

 of considerable thickness. I could not detect any 

 connexion or adhesion between the kidney and its 

 cyst; for the former could be drawn out, and re- 

 moved without any resistance being experienced: 

 but between it and the interior of the cyst was a 

 thin stratum of purulent-looking fluid. This kidney 

 was evidently smaller than the right one ; its surface 

 was soft and flocculent, and this looseness of struc- 

 ture extended towards the centre of the organ, be- 

 coming, however, gradually less marked. On making 

 a section of it, the tubular portion, in its interior, 

 presented a natural firmness and structure ; but it 

 appeared redder than usual, as if it had been lately 

 engorged. 



Exp. 9. In a middle-sized strong animal, the right 

 renal vein was exposed, and a ligature tied at such 

 a distance from the vessel as not immediately to 

 impede the flow of blood through the latter. The 

 ureter was also tied. At the end of eighteen hours, 

 the animal was killed. The urine found in the 

 bladder was not albuminous ; that in the right ureter 

 seemed nearly pure blood. The left kidney weighed 

 64 grs.; the right, 182 grs. 



Exp. 10. The left renal vein of a full-grown fat 

 rabbit was, in the same manner, included within a 

 loose loop, and the animal killed at the end of an 

 hour. The bladder contained bloody urine. The 

 right kidney weighed 90 grs. ; the left, 170. 



Exp. 11. The left renal vein being exposed, in a 



