UPON THE VASCULAR SYSTEM. 



135 



(b.) During Fasting. 



1. Cardio-inliibitory Nerves Paralysed by Atropia. 



EXPERIMENT XXXVI. — A Strong Retriever Dog which had Fasted for Seventeen 

 Hours. Canula in Femoral Artery. Trachea open. 3 Milligrammes Atropia 

 Sulphate Injected into Vein at 10-10 a.m. 



Time. 



Pulse in 10". 



Mean Pressure in inches 

 ofHg. 



General Notes. 



10-15' 



33 



6 





16' 



33 



6 





18' 



33 



6-4 





20' 







Both vagi divided. 



23' 30" 



34 



6-4 





45" 



33 



6-6 





24' 10" 



33 



6-3 





40" 



34 



6 





26' 



33 



6-4 





27' 



32 



63 





28' 



34 



6 





30" 







Cardio-inliibitory nerves found to 

 be completely paralysed. 



Result. — Division of vagi, followed by no change in blood-pressure, or fre- 

 quency of pulse. 



EXPERIMENT XXXVII. — Terrier which had Fasted for Eighteen Hours. Canula in 



Carotid Artery. Trachea open. 



Time. 



Pulse in 15". 



Mean Pressure in inches 

 ofHg. 



General Notes. 



11-46' 



30 



5 





51' 



31 



5-3 





52' 







2 milligrammes atropia sulphate 

 injected into vein. 



57' 



50 



5-5 



Both vagi divided. 



58' 









59' 39" 



49 



5-4 





12- 2' 



48 



5-5 





8' 



46 



5-2 



Cardio-inhibitory nerves ascer- 



8' 30" 







tained to be paralysed. 



Result. — Division of vagi, followed by no change in blood-pressure or fre- 

 quency of pulse. 



VOL. XXVI. PART I. 2 N 



