Free honey bee collecting nectar from a flower image, public domain animal CC0 photo. https://www.rawpixel.com/image/5901469/photo-image-background-flower-public-domainFree Image from public domain licenseYellowstone white tiger beetle (side view) - Cicindela haemorrhagicaTiger beetles (Cicindela haemorrhagica) live, feed and… https://www.rawpixel.com/image/4038484/photo-image-animal-public-domainFree Image from public domain license"One should strive for infallibility without claiming to have achieved it" (Malebranche). by Paul Nadar https://www.rawpixel.com/image/14273322/photo-image-face-hand-personFree Image from public domain licenseAureolus Theophrastus Bombastus von Hohenheim [Paracelsus]. Line engraving by S. A., 1765, after P. P. https://www.rawpixel.com/image/13971580/image-cartoon-face-personFree Image from public domain license"Rouviere dans le role d'Hamlet" par Manet by Anatole Godet https://www.rawpixel.com/image/14273247/rouviere-dans-role-dhamlet-par-manet-anatole-godetFree Image from public domain licenseOlinthus Gilbert Gregory. Stipple engraving after Derby. https://www.rawpixel.com/image/13998767/olinthus-gilbert-gregory-stipple-engraving-after-derbyFree Image from public domain licenseBenjamin Franklin. Stipple engraving after M. Chamberlin, 1762. https://www.rawpixel.com/image/13991155/benjamin-franklin-stipple-engraving-after-chamberlin-1762Free Image from public domain licenseFrederic E[dwin] Church (1826 - 1900) by Rockwood and Company https://www.rawpixel.com/image/14307199/frederic-edwin-church-1826-1900-rockwood-and-companyFree Image from public domain licenseWith best regards to John Mcglashan from James Davie by G Cumming https://www.rawpixel.com/image/14308936/with-best-regards-john-mcglashan-from-james-davie-cummingFree Image from public domain licenseSir John Franklin. Line engraving by J. Croll after J.M. Negelen. https://www.rawpixel.com/image/13986232/sir-john-franklin-line-engraving-croll-after-jm-negelenFree Image from public domain licenseMatthew Baillie. Stipple engraving by J. Thomson after J. Hoppner. https://www.rawpixel.com/image/14014003/matthew-baillie-stipple-engraving-thomson-after-hoppnerFree Image from public domain licenseJohn Abernethy. Mezzotint by C. Turner, 1828, after C.W. Pegler, 1828. https://www.rawpixel.com/image/13996793/john-abernethy-mezzotint-turner-1828-after-cw-pegler-1828Free Image from public domain licenseThe Blessed (subsequently Saint) Francisco Geronimo y Gravina holding a crucifix. Etching. https://www.rawpixel.com/image/14016114/image-face-person-crossFree Image from public domain licenseHenry John Temple, III (1784 - 1865), Viscount Palmusten by Camille Silvy https://www.rawpixel.com/image/14312341/henry-john-temple-iii-1784-1865-viscount-palmusten-camille-silvyFree Image from public domain licenseSir Richard Owen. Engraving by D. J. Pound after J. & C. Watkins. https://www.rawpixel.com/image/14002304/sir-richard-owen-engraving-pound-after-watkinsFree Image from public domain licenseAnatomia uteri humani gravidi tabulis illustrata ... The anatomy of the human gravid uteris exhibited in figures / [William… https://www.rawpixel.com/image/13983629/image-paper-face-flowerFree Image from public domain licenseAstronomy: an astronomer in his study, leaning on a planetary globe, while holding a pair of dividers. Engraving. https://www.rawpixel.com/image/14013301/image-face-person-booksFree Image from public domain licenseMoon rising over mountain ranges at dawn. Original public domain image from Flickr https://www.rawpixel.com/image/4030421/photo-image-flowers-light-moonFree Image from public domain licenseJoseph Black. Stipple engraving by J. Rogers after H. Raeburn. https://www.rawpixel.com/image/14012886/joseph-black-stipple-engraving-rogers-after-raeburnFree Image from public domain licenseThomas Norris. Mezzotint by J. Linnell, 1837, after himself. https://www.rawpixel.com/image/13993797/thomas-norris-mezzotint-linnell-1837-after-himselfFree Image from public domain licenseEdward Jenner. Stipple engraving by W. Ridley, 1804, after J. Northcote, 1803. https://www.rawpixel.com/image/13992388/edward-jenner-stipple-engraving-ridley-1804-after-northcote-1803Free Image from public domain licenseWilliam Scoresby. Line engraving by E. Smith, 1821, after A. Mosses. https://www.rawpixel.com/image/14003082/william-scoresby-line-engraving-smith-1821-after-mossesFree Image from public domain licenseAlice (1843 - 1878), Grand Duchess of Hesse by Camille Silvy https://www.rawpixel.com/image/14312312/alice-1843-1878-grand-duchess-hesse-camille-silvyFree Image from public domain licenseA man with a wounded back and shoulder leaning against a chair back. Coloured stipple etching after J. Bell, c. 1815 . https://www.rawpixel.com/image/14002167/image-face-person-artFree Image from public domain licenseUnidentified woman wearing a heart-shaped locket around her neck, printed in vignette-style by Mahan and Keller https://www.rawpixel.com/image/14310577/image-face-person-artFree Image from public domain licenseJoseph Black. Stipple engraving by K. Mackenzie after J. Tassie. https://www.rawpixel.com/image/14019400/joseph-black-stipple-engraving-mackenzie-after-tassieFree Image from public domain licenseJohann Nepomuk Fischer. Stipple engraving by W. C. Wrankmore after F. T. Mayer. https://www.rawpixel.com/image/14006181/johann-nepomuk-fischer-stipple-engraving-wrankmore-after-mayerFree Image from public domain licenseEpicurus. Line engraving by P. Fontana after L. Agricola after Raphael. https://www.rawpixel.com/image/14004055/epicurus-line-engraving-fontana-after-agricola-after-raphaelFree Image from public domain licenseJoseph, Ritter von Scherer. Line engraving by B. Höfel after K.P. Göbel. https://www.rawpixel.com/image/13982287/joseph-ritter-von-scherer-line-engraving-hofel-after-kp-gobelFree Image from public domain licenseSir Robert Charles MacWatt. Photograph by Bassano Ltd, 1930. https://www.rawpixel.com/image/14002854/sir-robert-charles-macwatt-photograph-bassano-ltd-1930Free Image from public domain licenseHenry John Temple, III (1784 - 1865), Viscount Palmusten by Camille Silvy https://www.rawpixel.com/image/14311413/henry-john-temple-iii-1784-1865-viscount-palmusten-camille-silvyFree Image from public domain licenseMan with moustache, holding a top hat, standing, posed on railing in studio by Antoine Claudet https://www.rawpixel.com/image/14305233/image-face-person-artFree Image from public domain licenseHermann Friedrich Teichmeyer. Line engraving after J. Kenckel. https://www.rawpixel.com/image/13976682/hermann-friedrich-teichmeyer-line-engraving-after-kenckelFree Image from public domain licenseUnidentified well-groomed man with moustache by Seeley and Warnock https://www.rawpixel.com/image/14306496/unidentified-well-groomed-man-with-moustache-seeley-and-warnockFree Image from public domain licenseSir William James Erasmus Wilson. Photograph by Ernest Edwards, 1868. https://www.rawpixel.com/image/14016641/sir-william-james-erasmus-wilson-photograph-ernest-edwards-1868Free Image from public domain licenseKarikatuurportret van Jacob Maris (1860 - 1899) by Elchanon Verveer https://www.rawpixel.com/image/13791317/karikatuurportret-van-jacob-maris-1860-1899-elchanon-verveerFree Image from public domain licenseAndré Laugier. Stipple engraving by A. Tardieu, 1825, after himself. https://www.rawpixel.com/image/14001421/andre-laugier-stipple-engraving-tardieu-1825-after-himselfFree Image from public domain licenseFree honey bee collecting nectar from a flower image, public domain animal CC0 photo. https://www.rawpixel.com/image/5901372/photo-image-background-flower-public-domainFree Image from public domain licenseAlessandro Cataneo. Line engraving by B. Cimarelli after A. Gulielmi. https://www.rawpixel.com/image/13976556/alessandro-cataneo-line-engraving-cimarelli-after-gulielmiFree Image from public domain licenseSaint Philip Benizzi: he refuses the papal tiara. Etching. https://www.rawpixel.com/image/13995417/saint-philip-benizzi-refuses-the-papal-tiara-etchingFree Image from public domain licenseUnidentified woman, printed in vignette-style by Augustus Marshall and Company https://www.rawpixel.com/image/14307379/unidentified-woman-printed-vignette-style-augustus-marshall-and-companyFree Image from public domain license