50 EXPERIMENTS OX THE CIKCULATK >N 



On testing the liquid portion witli nitric acid, albu- 

 minous flakes were produced. 



Exp. 5. The aorta being exposed, in a young 

 healthy rabbit, was included within a loose loop. 

 The animal continued to run about without any 

 appearance of paralysis. The left kidney was re- 

 moved at the same time, and weighed 35 grs. 

 Twenty-seven hours afterwards, the power of mo- 

 tion was still unimpaired* At the end of the second 

 day it was found dead. The right kidney weighed 

 42 grs. On tracing the aorta, it was seen to be 

 embedded in a quantity of lymph, that had been 

 thrown out round the thread, but the canal of the 

 vessel was still pervious. The loop had been applied 

 about half an inch below the origin of the right 

 renal artery, which seemed rather enlarged. The 

 bladder contained nearly two drachms of urine, 

 which was highly albuminous, forming instantly a 

 large coagulum on the addition of nitric acid. 



Exp. 6. The aorta of a full-grown strong rabbit 

 was tied tightly, and the left kidney removed ; but 

 the ligature round the vessels of the latter having 



O O 



become somewhat loosened, some active arterial 

 haemorrhage took place. This kidney was of a 

 lighter tint than usual, and weighed 82 grs. The 

 ordinary paraplegia was present. Three hours and 

 a half after the operation, the animal was in the 

 same condition, and was then killed. The right 

 kidney was enlarged and reddened ; it weighed 

 112 grs. The bladder was nearly empty, only two 

 or three drops of bloody urine escaping from it. On 

 tracing down the ureter, its upper portion was 



