https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13959250Edit ImageSaveSaveEditCropCustom TextAn alchemist peering into a glass vessel. Mezzotint by F.R. Say, 1819, after J. Northcote.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 894 x 1200 px | 300 dpiLarge JPEG 2350 x 3156 px | 300 dpiFree DownloadAn alchemist peering into a glass vessel. Mezzotint by F.R. Say, 1819, after J. Northcote.More