Search Only Images Download this image Portrait of Hermann von Helmholtz No info available for book source. Image ID: SIL-SIL14-h003-07 Supplied Caption: Portrait of Hermann von Helmholtz. Photogravure by Photographische Gesellschaft, Berlin (Photographic company), published by Photographische Gesellschaft, Berlin (Photographic company). After Ludwig Knaus, 1829-1910, 1881. Tags: physics, Helmholtz, Hermann von (1821-1894) Categories: Science Collection(s): Scientific Identity No Copyright - United States Request copy of image How can I use this image?
