An indigo plant (Indigofera stachyoides): flowering stem and floral segments. Coloured engraving by G. Barclay, c. 1843… https://www.rawpixel.com/image/13969255/image-flower-plant-medicineFree Image from public domain licenseA short horned heifer. Etching by H. Beckwith, ca 1843, after W.H. Davis. https://www.rawpixel.com/image/13982606/short-horned-heifer-etching-beckwith-1843-after-wh-davisFree Image from public domain license