356 



PHYSIOLOGICAL ACTION OF CONDURANGO. 



At this time peculiar curves began to appear in the blood- 

 pressure tracing. I could not understand in the very least 

 what their cause was at the time, but when the experiment was 

 finished I found that a clot of blood had formed in the tracheal 

 cannula, which would obstruct the breathing, and was in all 

 probability the occasion of these curves. As this would com- 

 plicate to a great extent the effects observed I have not noted 

 this part of the experiment. 



Results of Experiments XV, XVI, and XVII. 



