Halle, Anton und Gelbcke, 1830. 2 contemp. hcalf. Gilt spines. Slightly rubbed. In: ""Neues Jahrbuch er Chemie und Physik. Herausgegeben von W. Schweigger-Seidel"", Bd. II und III. XVI,496 pp. a. 5 folded engr.plates. + XVIII,502 pp. a. 5 folded engr. plates. Ohm's paper: pp. 385-435 (Bd. II) + pp. 32-59 (Bd. III).
First appearance of this importent paper in which Ohm for the first time shows that unipolarity is a kind of polarization which he calls ""Gegenspannung""