Tourist with a suitcase looking at his phone https://www.rawpixel.com/image/532402/premium-photo-image-african-american-aloneView licenseNotes on matters affecting the health, efficiency, and hospital administration of the British Army : founded chiefly on the… https://www.rawpixel.com/image/14009456/image-background-paper-cartoonFree Image from public domain licensePeruvian bark : a popular account of the introduction of chinchona cultivation into British India, 1860-1880 / by Clements… https://www.rawpixel.com/image/13975575/image-background-paper-world-mapFree Image from public domain licenseMortality of the British army at home and abroad, and during the Russian war, as compared with the mortality of the civil… https://www.rawpixel.com/image/14018039/image-background-paper-public-domainFree Image from public domain license