Sixteen French doctors with attributes of their specialties. Colour lithograph by A. Barrère, ca. 1906. https://www.rawpixel.com/image/13960983/image-cartoon-person-artFree Image from public domain licenseFlask with Squirrels by Arthur B Barlow, Doulton Co and Hannah Barlow https://www.rawpixel.com/image/11801535/photo-image-art-public-domain-black-backgroundFree Image from public domain licenseMedicine Man Curing a Patient. Original from the Minneapolis Institute of Art. https://www.rawpixel.com/image/7651694/image-watercolor-medicine-vintageFree Image from public domain licenseTwo army veterinarians, one up a ladder examining one of four camels which has artificial front legs. Wood engraving by E.T.… https://www.rawpixel.com/image/13995805/image-paper-cartoon-faceFree Image from public domain license