?Final Price Realized includes Buyer’s Premium added to Hammer Price
Estimate: $ 200 - $ 300
FIRST ELECTROCARDIOGRAM MARCHAND, RICHARD. Beiträge zur Kenntniss der Reizwelle und Contractionswelle des Herzmuskels. Extract from Pflügers Archiv, Volume 15, pages [511]-536. 8vo, modern boards; last page browned. inscribed by marchand to Dr. Nasse. [Bonn, 1877]
Paper describing the experiment in which Marchand obtained the first electrocardiogram using the differential rheotome to measure the time course of the potential variations from a frog's heart. Garrison-Morton 823.1. Bound with Marchand's Der Verlauf der Reizwelle des Ventrikels. Offprint from Pflügers Archiv, Volume 17, pages 137-51, with plate. Front wrapper inscribed by Marchand to Dr. Nasse.
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