https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14009485Edit ImageSaveSaveEditCropCustom TextA canon at Cuzco, Peru, in his study, studying natural sciences while his adopted children fight. Wood engraving by Picard after E. Riou.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 973 px | 300 dpiLarge JPEG 3000 x 2432 px | 300 dpiFree DownloadA canon at Cuzco, Peru, in his study, studying natural sciences while his adopted children fight. Wood engraving by Picard after E. Riou.More