https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14003795Edit ImageSaveSaveEditCropCustom TextSir David Brewster. Engraving by D. J. Pound, 1861, after J. Watkins.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 800 x 1200 px | 300 dpiLarge JPEG 1116 x 1675 px | 300 dpiFree DownloadSir David Brewster. Engraving by D. J. Pound, 1861, after J. Watkins.More