https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13977968Edit ImageSaveSaveEditCropCustom TextThomas Rutherford Ronaldson. Photograph by Drummond Young & Watson.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 829 x 1200 px | 300 dpiLarge JPEG 2196 x 3180 px | 300 dpiFree DownloadThomas Rutherford Ronaldson. Photograph by Drummond Young & Watson.More