https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13995159Edit ImageSaveSaveEditCropCustom TextArthur Cayley. Wood engraving by R. Taylor, 1883, after T.D. Scott.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1048 x 1200 px | 300 dpiLarge JPEG 2428 x 2779 px | 300 dpiFree DownloadArthur Cayley. Wood engraving by R. Taylor, 1883, after T.D. Scott.More