IN THE KIDNEY. 39 



healthy animal was tied, then the ureter, and ex- 

 actly three minutes and a half after the ligature of 

 the vein the artery was secured, and the organ 

 removed. The ureter contained bloody urine. The 

 right kidney was then removed: it weighed 60 grs. ; 

 the left 90 grs. The animal died towards the end 

 of the second day, having previously manifested 

 marked comatose symptoms. No morbid appearances 

 worthy of mention were found. 



Exp. 7. In a full grown, strong rabbit, the abdo- 

 minal aorta was exposed by an incision on the left 

 side of the spine, and seized by a powerful spring 

 forceps. The hinder extremities were immediately 

 paralysed. The blades of the forceps, the extremi- 

 ties of which were notched, were then separated and 

 withdrawn ; but, in taking this step, the coats of the 

 artery became twisted and torn, and considerable 

 haemorrhage ensued. This was, however, arrested 

 in a few minutes by compression of the trunk above. 

 The left kidney was then drawn out through the 

 same opening, its vein and ureter tied, and the organ 

 returned. The animal seemed at first faint from the 

 loss of blood, but gradually recovered ; it was killed 

 at the end of an hour; the paraplegia continuing 

 unchanged till death. The left kidney was much 

 engorged, and presented on its surface several spots 

 of ecchymosis; it weighed 175 grs.; the right kid- 

 ney, 98 grs. The left ureter contained a coagulum 

 of blood, and above it some muddy brownish fluid, 

 which, on exposure to the air, assumed a bright red 

 tint. The bladder contained nearly two drachms of 

 urine, which was natural in its appearance ; and on 



D 4 



