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FIRST EDITION of the experimental proof of Ohm's law, "the fundamental law of electric circuits" (Dibner 63). Ohm "made a study of the laws of galvanic currents, and while investigating the relative conductivity of metals finally discovered the relation known as 'Ohm's law,' which underlies all electrical theory and measurement. The experimental proof of this law was first published in a paper in Schweigger's Journal fur Chemie und Physik, vol. xlvi. (1826), under the title of Bestimmung des Gesetzes, nach welchem Metalle die Contactelektricität leiten" (Peck and Colby, The New International Encyclopedia). "The following year Ohm published a book, entitled Die Galvanische Kette, mathematisch bearbeitet (Berlin, 1827). It contained a theoretic deduction of Ohm's law, and became far more widely known than his article of 1826, giving the experimental deduction. In fact, his experimental paper was so little known that the impression long prevailed and still exists that he based his law on theory and never established it empirically. This misapprehension accounts, perhaps, for the unfavourable reception of Ohm's conclusions" (Cajori, A History of Physics). In: Journal für Chemie und Physik. Hrsg. v. J. S. C. Schweigger u. W. Schweigger-Seidel, vol. 46, pp. 137-166. Halle: 1826. The whole volume offered. Octavo, modern cloth. Some dampstaining throughout; occasional browning. Provenance: with library and de-accession stamps on series title from the prestigious Gmelin Institute (after 1996, part of the Max Planck Institute). Seller Inventory # 253
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