26 THE TONER LECTURES. 



Time. Temi). Remarks. 



11.45 



11.47 103|*^ Cut the medulla. Breathing at once ceased almost 

 entirely, so that dog was at cue time thought to be 

 dead, and artificial respiration, by compressing the 

 body with the hand, was resorted to. 



11.53 Dogbeginning to breathe voluntarily, eyes not sensitive 



nor is any portion of the body. 

 Room 70°. 



Dog shows no signs of life but the slow, regular breath- 

 ing. 



Breathing noisy, irregular. 



General muscular i-igidity, with constant convulsions. 

 Tremor has come on; both symptoms are much 

 aggravated by any irritation of tlie surfaces. Leg.s 

 stiflBy extended, tail forcibly drawn down between 

 them. 



1.15 106 Room 70°. 



2.10 107J Thermometer is now in abdominal cavity (has been in 

 the rectum). The dog has been vomiting freely of 

 matter. 



2.15 Arterial pressure 150-160 ; galvanization of a nerve 



caused it to fail to 120-125. 



2.20 108^ Cut the par vagum. Breathing at once almost sus- 

 pended. 



2.22 Respiration only at very long intervals. Blood in arte- 



ries venous. On connecting a cardiometer tube with 

 the femoral, the mercury rose to the top of the tube 

 (205) and flowed over in abundance. 



2.25 Has been no breathing for some minutes. Heart has 



not ceased to beat. 



Autopsy. — Knife has passed through the cerebellum, scrap- 

 ing the posterior surface of upper portion of meduHa, and cut- 

 ting it very obliquely at its junction with the pons. 



In looking over the records of these experiments, it will he 

 found that they are very conclusive, in regard to the rise of 

 temperature, which follows division of the medulla high up. 

 One of the most powerful means of lowering the temperature 



