Search Only Images Download this image Portrait of Gemma, Frisius No info available for book source. Image ID: SIL-SIL14-g002-05 Supplied Caption: Portrait of Gemma, Frisius. Engraving by E. de Boulonois, fl. 1682. Tags: mathematics, Gemma, Frisius (1508-1555) Categories: Science Collection(s): Scientific Identity No Copyright - United States Request copy of image How can I use this image?