62 LAW REGULATING THE FREQUENCY OF THE PULSE. 
ventricles ; such is found in the coronary circulation and the active 
diastole produced by means of it. 
In conclusion I have to present my best thanks to Dr. Michael 
Foster, Professor Sanderson, and Professor Pritchard of the Royal 
Veterinary College, for the opportunities they have afforded me in 
trying the experiments above detailed; without their assistance it 
would have been impossible for me to have put the law of the relation 
of blood pressure to pulse frequency on any satisfactory basis. 
June 10th, 1872. 
