Berlin, G. Reimer, 1830. 4to. No wrappers. As extracted from ""Journal für die reine und angewandte Mathematik. Hrsg. von A.L. Crelle, 5. Band"". No backstrip. A fine and clean copy. 287-295 pp. [Entire issue: 287-318 pp].
First printing of Dirichlet's paper in which he uses his methods to simplify the treatment of a problem by Fourier (theory of Fourier series): the temperature distribution in a thin bar with given temperatures at the endpoints.