“Observations on isolated nerve. ( Without particular reference to carbon dioxide) Dedication copy by the author in handwriting: “” With the author’s compliments””. “

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“Dedication copy by the author in handwriting: “” With the author’s compliments””. Waller was the first to use electrodes and leads in demonstrating the action currents of the heart, avoiding the necessity of opening the cehst of laboratory animal and preparing the way for present- day clinical electrocardiography. ( in 1887).”