Distinguished 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 licenseJohn Mackie. Stipple engraving by G. Glover after A. Penley. https://www.rawpixel.com/image/14009224/john-mackie-stipple-engraving-glover-after-penleyFree 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 licenseJohn Mackie. Stipple engraving by S. Freeman, 1830, after J. Moore. https://www.rawpixel.com/image/14019145/john-mackie-stipple-engraving-freeman-1830-after-mooreFree 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