214 INFLUENCE OF TEMPEEATURE ON THE MAMMALIAN HEART. 



Temp. Pulse in 15". 



Bight vagus irritated ••••••••••• •.. 34 



91 

 A piece of wood had been placed under it 

 the previous time to isolate it, and not removed, 

 so it \ras probably weakened bj exposure to air, 



107-2 88 



Eight vagus irritated , ..,,.. 28 



94 



109 97 



Right vagus irritated , * . . . 38 



99 

 Eight yagus irritated 109*2 26 



110 97 



Eight vagus irritated , 34 



99 

 101 



Eight vagus irritated ....•• 111*2 .,..,. 48 



103 



112-2 99 



Eight vagus irritated •.••••••• 88 



103 



113-2 85 



Heart has almost ceased to beat .... 113-6 



Respiration had entirely ceased. Artificial respiration was 

 tried, but it did not stimulate the heart in the least. The 

 tracheal cannula was found to be full of moisture. The animal 

 was allowed to lie in the apparatus. 



The heart stopped at 5 h. 8 m. p.m. Temp. 113 -0° F. 

 }} » V 8 „ „ 134-6 



:» >i « ll v> }} 11^ 



., „ „ 20 J, „ 115 -8 



» t> » 30 „ „ 116 -41 



The animal was now removed from the apparatus. In taking 

 off the head-holder, the animal's jaws were found to be so firmly 

 locked together that it was with considerable difficulty that the 

 bar of the holder could be removed from between the teeth. 

 On opening the abdomen the muscular walls were found to be 

 somewhat congested ; the viscera were rather pale. Behind the 

 right kidney, in the cellular tissue, over the psoas muscle, there 

 was an extravasation of blood, about 2 inches long by about 

 J an* inch broad. Lungs natural. Left ventricle was firmly 

 contracted ; right ventricle nearly empty. The left ventricle 



