BERNSTEIN, Julius (1839-1917).: - Über den zeitlichen Verlauf der nagativen Schwankung des Nervenstroms, mitgetheilt von Hrn. du Bois-Reymond.

[Printed in:] Montasgericht der Kgl. Preussischen Akademie der Wissenschaften zu Berlin. Februar 1867: pp. 72-77, 3 figs. Journal issue, orig. printed wrappers, uncut. Fine. - Preceding the author's larger paper of 1868 of the same title, introducing the differential rheotome, with which in 1877 the first electrocardiogram was obtained y Marchand in 1877. - Cf. Garrison & Morton 819.1.

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