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Dalby. https://www.rawpixel.com/image/13969558/image-paper-technology-hospitalFree Image from public domain licenseRobert Knox lecturing on the anatomy of the pig. Coloured lithograph. https://www.rawpixel.com/image/13969638/robert-knox-lecturing-the-anatomy-the-pig-coloured-lithographFree Image from public domain licenseA chemical lecture at the Surrey Institution. Coloured etching by T. Rowlandson after his drawing, 1809. https://www.rawpixel.com/image/13965727/image-cartoon-face-personFree Image from public domain licenseGeorge Combe lecturing on phrenology, portrayed with protuberances on his head. Coloured lithograph 1826. https://www.rawpixel.com/image/13968305/image-cartoon-person-bookFree Image from public domain licenseDoctor Syntax attending a scientific demonstration at the Royal Institution, London. Coloured aquatint by T. 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Daumier, 1841. https://www.rawpixel.com/image/13956920/image-face-person-artFree Image from public domain license"Krao", the "missing link" : a living proof of Darwin's theory of the descent of man : special lectures, 2.30, 5.30 &… https://www.rawpixel.com/image/13957226/image-cartoon-face-personFree Image from public domain licenseFranz Joseph Gall leading a discussion on phrenology with five colleagues, among his extensive collection of skulls and… https://www.rawpixel.com/image/13956186/image-cartoon-face-personFree Image from public domain licenseSchool of Medicine, Paris: interior view showing doctors attending a lecture in the amphitheatre. Coloured lithograph by G.… https://www.rawpixel.com/image/13970204/image-cartoon-face-personFree Image from public domain licenseJohn Wood FRS, FRCS (1825-1891) giving a lecture. Oil painting by Henry Jamyn Brooks, 1888. https://www.rawpixel.com/image/13952197/image-face-person-artFree Image from public domain licenseFranz Joseph Gall leading a discussion on phrenology with five colleagues, among his extensive collection of skulls and… https://www.rawpixel.com/image/13953535/image-cartoon-person-bookFree Image from public domain licenseDoctor Syntax attending a scientific demonstration at the Royal Institution, London. Coloured aquatint by T. Rowlandson… https://www.rawpixel.com/image/13953010/image-person-book-artFree Image from public domain licenseLectures on the operative surgery of the eye : or, an historical and critical inquiry into the methods recommended for the… https://www.rawpixel.com/image/13962687/image-face-person-artFree Image from public domain licenseDoctor Syntax attending a scientific demonstration at the Royal Institution, London. Coloured aquatint by T. Rowlandson… https://www.rawpixel.com/image/13959138/image-cartoon-person-bookFree Image from public domain licenseLectures on the operative surgery of the eye : or, an historical and critical inquiry into the methods recommended for the… https://www.rawpixel.com/image/13957670/image-face-person-artFree Image from public domain licenseThe anatomy of plants / With an idea of a philosophical history of plants. And several other lectures. Read before the Royal… https://www.rawpixel.com/image/13956677/image-paper-face-plantsFree Image from public domain licenseThe London Institution, Moorfields: the interior of the lecture theatre. Watercolour by R. B. Schnebbelie, [1820]. https://www.rawpixel.com/image/13969040/image-person-art-patternFree Image from public domain licenseIchthyosaurs attending a lecture on fossilised human remains. 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