. Eight lectures on the signs of life from their electrical aspect . Fig. 66.—An electrometer-curve of the electrical variation of the human heart; the values calculated from the record of the mercury level are given as a dotted line. (From Einthoven, Pfliigers Arckiv, vol. 60, 1895.) The principle upon which electrometer values are obtained from such electroscopic records is readily illustrated by demonstrating the

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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyo, bookyear1903