https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14001541Edit ImageSaveSaveEditCropCustom TextThe Crichton Royal Institution, Dumfries, Scotland. Transfer lithograph by Fr. Schenck.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1200 x 572 px | 300 dpiLarge JPEG 1972 x 940 px | 300 dpiFree DownloadThe Crichton Royal Institution, Dumfries, Scotland. Transfer lithograph by Fr. Schenck.More