218 . INFLUENCE OF TEMPERATURE ON THE MAMMALIAN HEART. 



Temp. 100-9° F. Pulse 76. 



Eight vagus irritated. The secondary coil had 

 been placed by mistake over the primary one, 

 and convulsive movement of the thorax occurred, 

 which obscured the pulse. It was then pushed 

 back 120 mm. during the irritation, but the 

 movements still continued 



After irritation , , 73 



Left vagus irritated. Slowing and stillstand 

 of heart, and irregular contractions of the thorax 

 occurred. 



Right vagus again irritated. Similar result 

 as before. 



Afterwards 77 



Left vagus irritated 29 



Afterwards , , 79 



Right vagus irritated ; distance of secondary 

 coil 100 mm stillstand 



Afterwards 79 



Left vagus irritated ; distance of coil 100 mm stillstand 



In i of a minute it was again perfectly re- 

 gular. 



102 82 



103 83 



104-104-4 89 



105-105-5 118 



106 103 



107 91 



108 89 



109 102 



110 102 



Left vagus irritated j distance of coil 100 mm 40 



In 3 seconds after 102 



Left vagus again irritated 88 



In 7^ ceconds after 106 



Pulsations are now very small ,. 113 112 



Left vagus irritated 22 



15 seconds after • 108 



113-4 106 



113-5 87 



T r^ - •. . J f slowing and 



Left vagus irritated | stillstand 



Convulsive movement of the thorax occurred, 

 and lasted nearly | a minute. The pulse then 

 became regular • 82 



It continued so for 35 seconds, and then sud- 



denlv fell to 30 



114-4 17 



The pulse now became irregular, 4 beats oc 

 curring together in one second, followed by a 



