https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14021201Edit ImageSaveSaveEditCropCustom TextAn alchemist in his study, discovering phosphorus; a young man and a boy in the background. Mezzotint by W. Pether, 1775, after J. Wright of Derby, 1771.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 867 x 1200 px | 300 dpiLarge JPEG 2346 x 3246 px | 300 dpiFree DownloadAn alchemist in his study, discovering phosphorus; a young man and a boy in the background. Mezzotint by W. Pether, 1775, after J. Wright of Derby, 1771.More