https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14008605Edit ImageSaveSaveEditCropCustom TextSir Frederick Gowland Hopkins. Photograph by F.A. Swaine Ltd.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 888 x 1200 px | 300 dpiLarge JPEG 2368 x 3201 px | 300 dpiFree DownloadSir Frederick Gowland Hopkins. Photograph by F.A. Swaine Ltd.More