ACTION OF STRYCHNIA. 623 



experiments ; but, as we have already shown in a former paper,* 

 its efiect in causing the ventricle when arrested by a ligature 

 applied around the junction of the venous sinus with the auricles 

 to recommence pulsation resembles that of heat. 



There are many other points on which we think that a fuller 

 consideration of our experiments will throw light, but to take 

 them up at present would involve too lengthy a discussion of 

 doubtful points in the physiology of the frog's heart, and so 

 we must reserve them for a future time. 



• 8t. BatthQLomew'a Uos£. HeporiSf vol. xvi, p. 229. 



