Search Only Images Download this image Portrait of Alexandre Brongniart No info available for book source. Image ID: SIL-SIL14-B8-07 Supplied Caption: Portrait of Alexandre Brongniart. Engraving. After Henriquel Dupont?, 1840. Tags: geology, Brongniart, Alexandre (1770-1847) Categories: Science Collection(s): Scientific Identity No Copyright - United States Request copy of image How can I use this image?