Wanderer on the Mountaintop (1818) painting in high resolution by Carl Gustav Carus. https://www.rawpixel.com/image/7728747/image-art-public-domain-artworksFree Image from public domain licenseGothic Windows in the Ruins of the Monastery at Oybin by Carl Gustav Carus https://www.rawpixel.com/image/9612675/gothic-windows-the-ruins-the-monastery-oybin-carl-gustav-carusFree Image from public domain licenseLehrbuch der Gynäkologie. Oder, Systematische Darstellung der Lehren von Erkenntniss und Behandlung eigenthümlicher gesunder… https://www.rawpixel.com/image/13958392/image-paper-cartoon-personFree Image from public domain licenseKarl Gustav Carus. Line engraving, 1884, after David d'Angers. https://www.rawpixel.com/image/14004420/karl-gustav-carus-line-engraving-1884-after-david-dangersFree Image from public domain license