Ohm's Law - 1827
Georg Simon Ohm (1789-1854)

First edition, containing the discovery of the fundamental law of electric circuits, that electromotive force is the product of current times resistance. Ohm utilized as an analogy to conductivity, the mathematical physics governing the flow of liquids and the thermodynamic equations of Fourier governing the dissipation of heat within a body. His results, now known as Ohm¹s law, were initially dismissed, and full recognition of his work did not come until 1841 when he was awarded the Copley Medal of the Royal Society and, belatedly, in 1881 when the International Electrical Congress established the ohm as the basic unit of resistance.

The fully developed presentation of his theory of electricity appeared in this great work, Die galvanische Kette, mathematisch bearbeitet (Berlin, 1827)... As a preliminary to the formulation of his fundamental laws, Ohm defined the electroscopic force operationally as that force the presence of which was detected by means of an electroscope, and the quantity of electricity of a body as the product of the magnitude of its electroscopic times its volume. These definitions, in the context of the larger theory, gave the previously vague but universally used notions of intensity and quantity of electricity a precise interpretation.¹¹

         Ohm's Law, from Die Galvanische Kette

Dibner 63; Ekelöf 876; Gartrell 879; Horblit 81; Norman 1607; Bakken p 268; Parkinson pp 284-85; PMM 287; Roller and Goodman II, p 255 (without advertisment leaf); Sparrow 154; Kanazawa 100; Wellcome IV p 260; Wheeler Gift 835