228 



THE NERVOUS SYSTEM OF MAN 



Figure 235. 



skip of his heart beat at x and the corresponding partial skip 

 under the stimulus of smoking in No. II. No. Ill (Figure 



236), as mentioned above, 



is a tracing of a strong 

 healthy heart of a young 

 man of somewhat excit- 

 able temperament. No. 

 IV represents the phleg- 

 matic temperament, that 

 is, a person who is cool 

 and calculating. No. V 

 is the heart tracing of a 

 strong and healthy 

 young woman. 



In Figure 237, Nos. I 

 and II are the pulse records of a man of splendid physique, 

 thirty-six years old and weighing 230 pounds. No. I 

 was taken before and No. II after smoking a cigar. He 

 does not inhale. His pulse responded readily to the 

 stimulus, but as the first tracing indicates he does not 

 seem to suffer from any 

 heart prostrations be- 

 tween indulgences. 

 No. Ill is the record of 

 a person whose vitality 

 is temporarily low from 

 nervous fatigue. No. 

 IV is the record of a 

 young woman who was 

 on the verge of nervous 

 prostration. No. V is 

 representative of a heart 



weakened by long indulgence in the smoking habit. The 

 young man in question began early and continued the 



Figure 236. 



