142 



DR RUTHERFORD ON THE INFLUENCE OF THE VAGUS. 



Result. — Division of vagi and depressors followed by increased blood- 

 pressure ; but no change in the frequency of the pulse. 



(b.) During Fasting. 



EXPERIMENT XLVII. — Strong Rabbit which had Fasted foe Eighteen Hours. Canula 



in Carotid Artery. Trachea open. 



Time. 



Pulse in 10". 



Mean Pressure in inches 

 ofHg. 



General Notes. 



12-28' 



38 



4 





30' 



38 



4 





32' 







8 milligrammes atropia sulphate 

 injected into vein. 



35' 



57 



36 





36' 



55 



4-2 





37' 







Both nervi-depressores divided. 



30" 



54 



4-3 





38' 







Right vagus divided. 



45" 



53 



4-2 





40' 



51 



41 





41' 







Left vagus divided. 



42' 



50 



4 





44' 



49 



3-9 





45' 



50 



3-9 





Result. — Division of vagi followed by no change in pressure or pulse. 



EXPERIMENT XLVIIL— Rabbit which had Fasted for Eight Hours and a Half. 

 Canula in Carotid Artery. Tra.chea open. 



Time. 



Pulse in 15". 



Mean Pressure in inches 

 ofHg. 



General Notes. 



4-54' 



48 



3-8 





56' 



50 



4 





5-10' 







9 milligrammes atropia sulphate 

 injected into vein. 



13' 



74 



3-8 





15' 



76 



3-6 





18' 



74 



3-5 





30" 







Both depressors divided. 



20' 



75 



3-5 





21' 







Both vagi divided. 



27' 



77 



34 





30' 



74 



3-5 





32' 



70 



3-6 





34' 10" 



68 



3-4 





Result— Division of vagi followed by no change in pressure or pulse. 



