The Prince Regent presenting to political ministers the expected baby of Princess Charlotte and Prince Leopold, who urinates… https://www.rawpixel.com/image/13961995/image-dog-cartoon-faceFree Image from public domain licenseDog rose (Rosa canina): flowering stem, flower, fruit and bud. Coloured engraving, c. 1830, after J. Sowerby. https://www.rawpixel.com/image/13964679/image-dog-paper-rosesFree Image from public domain licenseAn attack on smallpox vaccination and on the Royal College of Physicians' advocacy of it. Coloured etching by G. Cruikshank… https://www.rawpixel.com/image/13955974/image-cartoon-person-artFree Image from public domain licenseA mint plant (Mentha species) with an associated moth or butterfly and its anatomical segments. Coloured etching, c. 1830. https://www.rawpixel.com/image/13954337/image-butterfly-flower-plantFree Image from public domain license