OF THE BRAIN, ETC. 9 



During the experiment the blood in the femoral 

 artery was seen to be of a bright florid colour, 

 and that in the femoral vein of a dark colour, 

 as usual. 



The rabbit voided urine at the commencement 

 of the experiment; at the end of the experi- 

 ment no urine was found in the bladder. 



EXPERIMENT VI. 



I procured two rabbits of the same colour, 

 but one of them was about one-fifth smaller than 

 the other. I divided the spinal chord of the 

 larger rabbit between the occiput and atlas. 

 Having secured the vessels in the neck, and re- 

 moved the head, I kept up the circulation by 

 means of artificial respiration as in the former 

 experiments. The respirations were made as 

 nearly as possible similar to natural respira- 

 tions. 



In 23 minutes after the spinal chord had been 

 divided, the pulse was strong, and 130 in a 

 minute : the bulb of the thermometer being placed 

 among the viscera of the abdomen, the mercury 

 stood at 96. 



At 34 minutes the pulse was 120 in a minute ; 

 the heat in the abdomen was 95. 



At the end of an hour the pulse could not be 

 felt, but, on opening the thorax, the heart was 

 found acting, slowly and feebly. The heat in 

 the abdomen was 91 ; and between the lobes of 

 the right lung 88. 



During the experiment, the blood in the ar- 



