https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13988483Edit ImageSaveSaveEditCropCustom TextJohn Wallis. Line engraving by M. Burghers, 1699, after D. Loggan, 1678.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 855 x 1200 px | 300 dpiLarge JPEG 2244 x 3148 px | 300 dpiFree DownloadJohn Wallis. Line engraving by M. Burghers, 1699, after D. Loggan, 1678.More