216 INFLUENCE OF TEMPETJATUKE ON THE MAMMALIAN HEAET. 



Temp. 103 -5° F Pulse 78 



Eight vagus cut 102^0 79 



Left vagus cut 103 '(5 80 



Right irritated « 40 



Afterwards 7G 



Left vagus irrital el 26 



7i" nfterwarJs 78 



Temperature rising rapiJlj, about 



0-3° in a minute 103 ^3-103 ^8 78 



81 

 85 

 87 

 88 

 90 

 Heart suddenly became slow and 



weak lOD '2 stopped 



Experiment VI. — A young rabbit, weighing about 1-^ lbs., waa 

 narcotised by the injection of 4 c.c. of 50 per cent, chloral solu- 

 tion under the skin of the flank. Shortly after it was placed 

 in the apparatus the respiration stopped, but the carotids were 

 seen vigorously pulsating. The trachea was quickly opened, 

 a cannula inserted, and artificial respiration begun. The heart, 

 which had begun to get weak, soon pulsated normally again. 

 A thread was passed under the right vagus, but it was not cut 



Temp. 104-4° F Tulse 82 



100-1 78 



101-101-2 81 



102-102-2 86 



103-103-1 87 



103 •5-103 -8- 87 



104 89 



105 86 



306 5S 



106-2 42 



Began artificial respiration . . 106 -2 G4 



Respiration began to go on again naturally, but soon stopped ; 

 and on again beginning artificial respiration tJie animal did not 

 recover. On post-mortem examination, blood was found to have 

 extravasated into the pericardium from the heart. 



Uxjjeriment VI L — A young rabbit, weighing about li lb., 

 was narcotised by injecting 3 c.c. of a 50 per cent, chloral 

 solution subcutaneously. An hour afterwards a cannula was 

 introduced into the trachea. 



