Monday, 8 May 2017

The mechanism and graphic registration of the heart beat (1920)





Figure 22: Photograph of a subject as connected for observation. The two arms and the left leg are used, and curves are taken from the three leads which are represented by the arrows drawn upon the figure. The zinc sulphate is placed in the outer vessels of the electrodes shown in this figure. 

The Mechanism and Graphic Registration of the Heart Beat (1920) by Sir Lewis Thomas. 


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