154 ELEMENTAKT PHYSIOLOGY. [XIV. 



b. Dilatation of the small blood-vessels through 

 stimulation of the central end of the depressor 

 nerve. 



4. Methods of measuring the velocity of the hlood- 

 current in large vessels. 



5. Comparison of venous and arterial pressure. 



6. Method of using the sphygmograph. 

 7 Method of using the cardiograph. 



