Page 27. 
26 CARDIOGRAPH TRACINGS FROM THE HUMAN CHEST-WALL. 
of a Turkish bath very rapid pulses can be recorded up to and above 
150 a minute in health, without the least inconvenience. Very slow 
pulses can be produced by lying nude some time in a cold air, or by 
drinking iced water, especially when nude. 
_ DESCRIPTION OF THE FIGURES. 
’ They were all taken one-half the size here represented. Except Fig. IX, they 
read from left to right. 
Fig. I. Apex trace of a heart beating 125 times a minute. 
Fig. If. Trace of a heart beating 125 a minute, half an inch prays. cat 
apex beat. 
Fig. III. Apex trace of a heart beating 88 a minute. * 
Fig. IV. Trace between 6th and 7th ribs, below the apex, of a heart beating 
88 a minute. 
Fig. V. Apex trace of a heart beating 76 a minute. 
Fig. VI. Apex trace of a heart beating 50 a minute. 
Fig. VII. Apex trace of a pulse of 90 a minute, taken with a lever two inches 
long, attached to the sphygmograph pad by‘a thread. 
Fig. VIII. Apex trace of a pulse at 60 a minute, taken when the body was 
inclined forward. 
Fig. 1X. Apex trace of a pulse at 42 a minute. It reads from right to left. 
Fig. X. Apex trace of a pulse at 103 a minute, prepared for measuring. 
