Java: human skeletons lying in a valley poisoned by volcanic gases, being watched by travellers. Coloured aquatint. https://www.rawpixel.com/image/13968832/image-plant-person-treeFree Image from public domain licenseSarah Bernhardt in the role of La Tosca. Colour lithograph by A. Mucha, 1899. https://www.rawpixel.com/image/13968431/sarah-bernhardt-the-role-tosca-colour-lithograph-mucha-1899Free Image from public domain licenseThe Congress of Berlin: Disraeli as a tooth-drawer, assisted by Queen Victoria, operates on Sultan Abdul Hamid II of the… https://www.rawpixel.com/image/13968281/image-dog-cartoon-personFree Image from public domain licenseCrimean War: key to the painting of the reception of "Crimean Heroes" by Queen Victoria. Coloured lithograph after J.… https://www.rawpixel.com/image/13981727/image-person-art-public-domainFree Image from public domain licenseSome Fellows of the Royal Society: a key to the identities of the sitters. Wood engraving, 1885. https://www.rawpixel.com/image/13985855/image-face-flower-personFree Image from public domain licenseSurgeons and physicians of St Bartholomew's Hospital, London, with views of the building and adjacent churches. Colour… https://www.rawpixel.com/image/13988187/image-dog-cartoon-personFree Image from public domain licenseSheet of sketches showing the interior of the hospital ship the "Ganges", Sudan: with numbered key. Wood engraving. https://www.rawpixel.com/image/13994589/image-cartoon-person-bookFree Image from public domain licenseSir Gerald Graham directing the hoisting of patients on board a hospital ship, Sudan. Wood engraving by J.N., 1885. https://www.rawpixel.com/image/14003929/image-person-airplane-artFree Image from public domain license