180 ACTION OF NITRITE OF AMYL ON THE CIRCULATION, ETC. 



had sunk very low after division of the cord, sank yet farther 

 when the nitrite was inhaled. Although the sinking was not 

 absolutely great, it was so relatively to the very low pressure 

 already existing, and was analogous to that observed on the 



. ^ 



1.1 



2 



eS ^ 



-3 



section of a second splanchnic nerve after division of the first. 

 The other experiments, to prove that the diminished blood- 

 pressvu'e after inhalation is due to dilatation of the vessels, and 

 not to a weakened heart, consisted in compressing the aorta 

 below the diaphragm and then administering the nitrite. If 



