Johann Jacob Scheuchzer, holding a thistle. Line engraving by J. Nutting, 1723, after M. Füsslinus. https://www.rawpixel.com/image/14018933/image-face-person-artFree Image from public domain licenseButterfly close up, green leaf. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3297962/free-photo-image-admiral-animal-animals-images-picturesFree Image from public domain licenseSir George Biddell Airy. Photograph by Morgan & Kidd, 1891. https://www.rawpixel.com/image/13975613/sir-george-biddell-airy-photograph-morgan-kidd-1891Free Image from public domain licenseWilliam Thomson, Baron Kelvin. Photograph by T. & R. Annan & Sons. https://www.rawpixel.com/image/14005623/william-thomson-baron-kelvin-photograph-annan-sonsFree Image from public domain licenseDuch[esse] de Medina Coeli by André Adolphe Eugène Disdéri https://www.rawpixel.com/image/14308811/duchesse-medina-coeli-andre-adolphe-eugene-disderiFree Image from public domain licenseWilliam Harvey. Engraving by C. H. Jeens, 1878, after W. von Bemmel, 1657. https://www.rawpixel.com/image/14007551/william-harvey-engraving-jeens-1878-after-von-bemmel-1657Free Image from public domain licenseSaint Francis of Paula holding a crook and and a cross, walking along a path with a lamb. Etching, 1700/1780. https://www.rawpixel.com/image/13983336/image-cartoon-face-personFree Image from public domain licenseBaron Albrecht von Haller. Mezzotint by J. J. Haid after C. N. Eberlein, 1745. https://www.rawpixel.com/image/13996280/baron-albrecht-von-haller-mezzotint-haid-after-eberlein-1745Free Image from public domain licenseFree coffee cup on wooden table photo, public domain beverage CC0 image. https://www.rawpixel.com/image/5911407/photo-image-public-domain-wooden-coffeeFree Image from public domain licenseUnidentified young man by Otto Björklund and Selma Angel https://www.rawpixel.com/image/14310826/unidentified-young-man-otto-bjorklund-and-selma-angelFree Image from public domain licenseSamuel Armstrong Lane. Lithograph by R. J. Lane after T. Lewis. https://www.rawpixel.com/image/13975880/samuel-armstrong-lane-lithograph-lane-after-lewisFree Image from public domain licenseBearded man posing in long, dark coat and wool hat by William Carrick https://www.rawpixel.com/image/14308767/bearded-man-posing-long-dark-coat-and-wool-hat-william-carrickFree Image from public domain licenseAlexander Tschirch. Photograph after a plaque by Hugo Siegwart. https://www.rawpixel.com/image/13972326/alexander-tschirch-photograph-after-plaque-hugo-siegwartFree Image from public domain licenseJoseph Black. Stipple engraving by J. Heath after H. Raeburn. https://www.rawpixel.com/image/14010283/joseph-black-stipple-engraving-heath-after-raeburnFree Image from public domain licenseFree glass ball, Christmas ornament image, public domain holiday CC0 photo. https://www.rawpixel.com/image/5904387/photo-image-background-xmas-public-domainFree Image from public domain license"Love on Crutches"/[Male actor with monocle and a cane to his lips] by Cummins https://www.rawpixel.com/image/14306354/love-crutchesmale-actor-with-monocle-and-cane-his-lips-cumminsFree Image from public domain licenseGeorges Louis Leclerc, Comte de Buffon. Lithograph by Z. Belliard. https://www.rawpixel.com/image/14013715/georges-louis-leclerc-comte-buffon-lithograph-belliardFree Image from public domain licenseDissection of the neck and shoulder, showing the brachial plexus. Lithograph by N.H Jacob, 1831/1854. https://www.rawpixel.com/image/14008326/image-cartoon-face-personFree Image from public domain licenseGeorges de La Faye. Stipple engraving by A. Tardieu after L. L. Périn. https://www.rawpixel.com/image/13990493/georges-faye-stipple-engraving-tardieu-after-perinFree Image from public domain licenseJean-Baptiste-Armand-Louis-Léonce Elie de Beaumont. Wood engraving. https://www.rawpixel.com/image/14010670/jean-baptiste-armand-louis-leonce-elie-beaumont-wood-engravingFree Image from public domain licenseSir Kenelm Digby. Line engraving by A. Bannerman after A. van Dyck, 1633. https://www.rawpixel.com/image/14018429/sir-kenelm-digby-line-engraving-bannerman-after-van-dyck-1633Free Image from public domain licenseCliff Palace is the largest ruin discovered in Mesa Verde. It was once a village of over 200 rooms and 23 kivas (ceremonial… https://www.rawpixel.com/image/8802879/photo-image-trees-soil-constructionFree Image from public domain licenseSir George Biddell Airy. Process print after Lock & Whitfield. https://www.rawpixel.com/image/13995151/sir-george-biddell-airy-process-print-after-lock-whitfieldFree Image from public domain licenseJohann Mathias Gesner. Line engraving by J. M. Bernigeroth, 1747, after F. Reibenstein, 1747. https://www.rawpixel.com/image/14012547/image-face-person-artFree Image from public domain licensePresident Joe Biden walks along the Colonnade Thursday, Jan. 21, 2021, to the Oval Office of the White House. https://www.rawpixel.com/image/4046111/photo-image-public-domain-person-manFree Image from public domain licenseA man designated as Philibert Maurice D'Ocagne. Photograph by G.L. Manuel. https://www.rawpixel.com/image/13977600/man-designated-philibert-maurice-docagne-photograph-gl-manuelFree Image from public domain licenseMan op een schilderijenveiling (1792 - 1818) by John Nixon, anonymous and John Nixon https://www.rawpixel.com/image/13772595/image-paper-cartoon-faceFree Image from public domain licenseJohn Armstrong. Line engraving by P. Audinet after Sir J. Reynolds. https://www.rawpixel.com/image/13994304/john-armstrong-line-engraving-audinet-after-sir-reynoldsFree Image from public domain licenseThree-dimensional map of Imugan, Philippine. Free public domain CC0 image. https://www.rawpixel.com/image/6202586/photo-image-texture-public-domain-abstractFree Image from public domain licenseTwo uniformed German army doctors standing in the grounds of the House of Oldenburg. Coloured lithograph, c. 1870. https://www.rawpixel.com/image/13965445/image-cartoon-person-artFree Image from public domain licenseJames Cook. Line engraving by J. Horsburgh after Sir N. Dance-Holland, 1776. https://www.rawpixel.com/image/14003896/james-cook-line-engraving-horsburgh-after-sir-dance-holland-1776Free Image from public domain licenseFree small black and white dog on grass field image, public domain animal CC0 photo. https://www.rawpixel.com/image/5918163/image-background-public-domain-greenFree Image from public domain licenseThe Hellespontic sibyl. Engraving by D. Cunego after G. Magnani after G.F. Barbieri, il Guercino. https://www.rawpixel.com/image/13993669/image-cartoon-face-personFree Image from public domain licenseJohann Wendt. Lithograph by F. Jentzen, 183-, after F. Krüger. https://www.rawpixel.com/image/13997403/johann-wendt-lithograph-jentzen-183-after-krugerFree Image from public domain licenseAureolus Theophrastus Bombastus von Hohenheim [Paracelsus]. Line engraving. https://www.rawpixel.com/image/13982286/aureolus-theophrastus-bombastus-von-hohenheim-paracelsus-line-engravingFree Image from public domain licenseFemale photographer sticker, hobby illustration vector. Free public domain CC0 image. https://www.rawpixel.com/image/6431227/vector-sticker-public-domain-womanFree Vector from public domain licenseUnidentified little boy seated on a table, wearing a straw hat with a "Speedwell" banner by Hills and Saunders https://www.rawpixel.com/image/14307808/photo-image-face-person-baseballFree Image from public domain licenseDominik, Edler von Vivenot. Lithograph by J. Kriehuber, 1831. https://www.rawpixel.com/image/14015340/dominik-edler-von-vivenot-lithograph-kriehuber-1831Free Image from public domain licenseHenry Jenkins, aged 169. Coloured mezzotint after R. Walker. https://www.rawpixel.com/image/13958995/henry-jenkins-aged-169-coloured-mezzotint-after-walkerFree Image from public domain licenseOCHS Homecoming Dance 2022September 23, 2022Photography by Grant PauliSeptember 23, 2022 OCHS website. Be sure and checkout… https://www.rawpixel.com/image/11193209/photo-image-people-facebook-womanFree Image from public domain licenseSir Robert Christison. Lithograph by Fr. Schenck after W. Stewart. https://www.rawpixel.com/image/13996195/sir-robert-christison-lithograph-fr-schenck-after-stewartFree Image from public domain licensePortret van Theodor Leschetizky (1880 - 1920) by Ferdinand Schmutzer https://www.rawpixel.com/image/13761805/portret-van-theodor-leschetizky-1880-1920-ferdinand-schmutzerFree Image from public domain licenseThe human head, divided according to the system of phrenology. Coloured lithograph by C. Ingrey, 1824. https://www.rawpixel.com/image/13966286/image-cartoon-face-personFree Image from public domain licenseVrouw, de handen in de schoot gevouwen (1700 - 1800) by anonymous https://www.rawpixel.com/image/13782888/vrouw-handen-schoot-gevouwen-1700-1800-anonymousFree Image from public domain licenseMatthew Boulton. Stipple engraving by A. Cardon, 1812, after W. Evans after Sir W. Beechey, 1799. https://www.rawpixel.com/image/13986030/image-face-person-artFree Image from public domain licenseFranz Coelestin, Ritter von Schneider. Lithograph by J. Kriehuber, 1854. https://www.rawpixel.com/image/14018233/franz-coelestin-ritter-von-schneider-lithograph-kriehuber-1854Free Image from public domain license