Joseph Clark, a contortionist. Line engraving by Thornton. https://www.rawpixel.com/image/14002122/joseph-clark-contortionist-line-engraving-thorntonFree Image from public domain licenseRobert John Thornton. Stipple engraving by Holl, 1813, after J. Russell. https://www.rawpixel.com/image/14003008/robert-john-thornton-stipple-engraving-holl-1813-after-russellFree Image from public domain licenseNew illustration of the sexual system of Carolus von Linnaeus : comprehending an elucidation of the several parts of the… https://www.rawpixel.com/image/14016228/image-face-plants-personFree Image from public domain licenseNew illustration of the sexual system of Carolus von Linnaeus : comprehending an elucidation of the several parts of the… https://www.rawpixel.com/image/13973350/image-cartoon-plant-personFree Image from public domain licenseJean François Pilâtre de Rozier. Stipple engraving by J. Collyer, 1786, after J. Russell. https://www.rawpixel.com/image/14021459/image-face-person-artFree Image from public domain licenseMrs. Thornton, wife of Farm Security Administration borrower, canning vegetables with pressure cooker. Story County, Iowa.… https://www.rawpixel.com/image/12323994/image-person-public-domain-womanFree Image from public domain licenseVaccinae vindicia; or, defence of vaccination: containing a refutation of the cases, and reasonings on the same, in Dr.… https://www.rawpixel.com/image/13994863/image-cartoon-face-personFree Image from public domain licenseVaccinae vindicia; or, defence of vaccination: containing a refutation of the cases, and reasonings on the same, in Dr.… https://www.rawpixel.com/image/14006643/image-paper-cartoon-faceFree Image from public domain licenseClarence Thornton and wife, Farm Security Administration borrowers, going over farm plan with Farm Security Administration… https://www.rawpixel.com/image/12323770/image-people-book-public-domainFree Image from public domain licenseJack Cowan, Farm Security Administration representative, Helen Warren, home supervisor, and Mr. and Mrs. Clarence Thornton… https://www.rawpixel.com/image/12324010/image-face-people-artFree Image from public domain licenseRobert John Thornton, and the entrance to Guy's Hospital. Stipple engraving by F. Bartolozzi, 1799, after J. Russell, and W.… https://www.rawpixel.com/image/14018082/image-cartoon-face-personFree Image from public domain licenseTulips illustration https://www.rawpixel.com/image/1199337/tulip-flowersView licenseVintage Queen–Plant illustration https://www.rawpixel.com/image/1199348/plant-drawingView licenseThe Pontic Rhododendron illustration https://www.rawpixel.com/image/1199329/pontic-rhododendron-flowerView licenseHyacinths illustration https://www.rawpixel.com/image/1199396/hyacinth-flowersView licenseThe Narrow–Leaved Kalmia illustration https://www.rawpixel.com/image/1199331/narrow-leaved-kalmia-flowersView licenseA Group of Auriculas illustration https://www.rawpixel.com/image/1199328/group-auriculas-flowersView licenseThe Chinese Limodoron illustration https://www.rawpixel.com/image/1199379/chinese-limodoron-flowersView licenseThe Maggot–Bearing Stapelia illustration https://www.rawpixel.com/image/1199349/maggot-bearing-stapeliaView licenseThe American Cowslip illustration https://www.rawpixel.com/image/1199330/american-cowslip-flowerView licensePitcher Plant illustration https://www.rawpixel.com/image/1199365/pitcher-plant-bloomView license