MARY Dkl'SILI-A FI.ATHKR. 



Vt 



Q 



Z 

 O 



o 



Ul 



o 



z 

 u 



D 

 O 

 U 



K 



Ul 



14 



13 



12 



11 



10 



NUMBER OF PULSATIONS 



FIG. 2.Jlncreasc in pulse frequency following treatment with adrenalin, 

 pituitary substance, and pineal substance, i : 200,000 solutions. < >nlinutr< it-pre- 

 sent pulse frequency in seconds, abscissa?, the number of pulsations refolded. 

 The average of both vacuolcs is given. Pulsations 1-7 represent rate under normal 

 conditions, and 7-14 the rate after treatment with the solutions. Unbroken line 

 gives record of individual subjected to adrenalin. Broken line give- K-. .ml ..I 

 individual subjected to pituitary substance. Line of crosses give- record of indi- 

 vidual subjected to pineal substance. 



