Cucurbitaceae, The Gourd Tribe, from Illustrations of the Natural Orders of Plants. Original from the Minneapolis Institute… https://www.rawpixel.com/image/7652516/image-plant-flower-vintageFree Image from public domain licenseBritish Association for the Advancement of Science: speakers at its meeting in Cambridge in 1904. Coloured drawing by A.S.… https://www.rawpixel.com/image/13961764/image-cartoon-face-personFree Image from public domain licenseEthnographic Map of the Indian Tribes of the United States, A.D. 1600. Original from the Minneapolis Institute of Art. https://www.rawpixel.com/image/7652971/image-vintage-art-public-domainFree Image from public domain licenseThe Laughing Waters Three Miles Below the Falls of St. Anthony. Original from the Minneapolis Institute of Art. https://www.rawpixel.com/image/7652570/image-watercolor-vintage-artFree Image from public domain licenseProtecting the Cornfields from Vermin. Original from the Minneapolis Institute of Art. https://www.rawpixel.com/image/7651692/image-watercolor-vintage-artFree Image from public domain licenseSounding Wind, The Chippewa Brave. Original from the Minneapolis Institute of Art. https://www.rawpixel.com/image/7651269/image-watercolor-vintage-artFree Image from public domain licenseIndian Doctor Concocting a Pot of Medicine. Original from the Minneapolis Institute of Art. https://www.rawpixel.com/image/7651285/image-watercolor-medicine-vintageFree Image from public domain licenseItasca Lake, Source of the Mississippi, 1575 Feet above the Gulf of Mexico. Original from the Minneapolis Institute of Art. https://www.rawpixel.com/image/7651257/image-watercolor-vintage-artFree Image from public domain licenseIndian Medas Secretly Showing the Contents of their Medicine Sacks to Each Other. Original from the Minneapolis Institute of… https://www.rawpixel.com/image/7651268/image-watercolor-medicine-vintageFree Image from public domain licenseDistinguished British men of science 1807-1808 assembled in the library of the Royal Institution, London. Mezzotint by W.… https://www.rawpixel.com/image/13975701/image-person-art-clothingFree Image from public domain licenseDistinguished British men of science 1807-1808 assembled in the library of the Royal Institution, London. Mezzotint by W.… https://www.rawpixel.com/image/13981199/image-person-art-clothingFree Image from public domain licenseThe distinguished men of science 1807-8: a key to the identities of the sitters. Photograph of engraving by W. Walker, 1862… https://www.rawpixel.com/image/14011458/image-cartoon-face-personFree Image from public domain license