https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13991458Edit ImageSaveSaveEditCropCustom TextPeruvian bark : a popular account of the introduction of chinchona cultivation into British India, 1860-1880 / by Clements R. Markham.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1071 x 1200 px | 300 dpiLarge JPEG 1282 x 1437 px | 300 dpiFree DownloadPeruvian bark : a popular account of the introduction of chinchona cultivation into British India, 1860-1880 / by Clements R. Markham.More