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    The Public Domain Review
    *Atlas of the Munsell Color System* (1915)
    Images / 
    Science & Medicine

    Atlas of the Munsell Color System (1915)

    Synaesthesia’s Colour Debut (1883)
    Images / 
    Strange Phenomena, Science & Medicine

    Synaesthesia’s Colour Debut (1883)

    Orra White Hitchcock’s Scientific Illustrations for the Classroom (1828–40)
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    Science & Medicine, Natural World, Religion, Myth & Legend

    Orra White Hitchcock’s Scientific Illustrations for the Classroom (1828–40)

    The Stream of Time (1803–58)
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    Maps

    The Stream of Time (1803–58)

    Alien Aqueducts: The Maps of Martian Canals
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    Astronomy & Space

    Alien Aqueducts: The Maps of Martian Canals

    The Zodiac Man
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    Science & Medicine

    The Zodiac Man

    Visualizing History: The Polish System
    Images / 
    Maps

    Visualizing History: The Polish System

    Early Illustrations of the Nervous System by Camillo Golgi and Santiago Ram�ón y Cajal
    Images / 
    Science & Medicine

    Early Illustrations of the Nervous System by Camillo Golgi and Santiago Ramón y Cajal

    Optics Illustrations from the Physics Textbooks of Amédée Guillemin (1868/1882)
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    Science & Medicine

    Optics Illustrations from the Physics Textbooks of Amédée Guillemin (1868/1882)

    Cosmography Manuscript (12th Century)
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    Geometry & Diagrams

    Cosmography Manuscript (12th Century)

    George Mayerle’s Eye Test Chart (ca. 1907)
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    Science & Medicine, Design & Typography

    George Mayerle’s Eye Test Chart (ca. 1907)

    Diagrams from Dr Alesha Sivartha’s Book of Life (1898)
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    Science & Medicine, Religion, Myth & Legend, Wisdom

    Diagrams from Dr Alesha Sivartha’s Book of Life (1898)

    Chladni Figures (1787)
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    Science & Medicine

    Chladni Figures (1787)

    Images from Johann Zahn’s Oculus Artificialis (1685)
    Images / 
    Technology

    Images from Johann Zahn’s Oculus Artificialis (1685)

    A Selection from The MET’s Public Domain Collection, Now Free from All Restrictions
    Images

    A Selection from The MET’s Public Domain Collection, Now Free from All Restrictions

    W. E. B. Du Bois’ Hand-Drawn Infographics of African-American Life (1900)
    Images / 
    Politics, Geometry & Diagrams

    W. E. B. Du Bois’ Hand-Drawn Infographics of African-American Life (1900)

    Chirologia, or The Natural Language of the Hand (1644)
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    Communication, Emotion & Expression

    Chirologia, or The Natural Language of the Hand (1644)

    The Music of Light: Emily Noyes Vanderpoel’s Colour Analysis Charts (1902)
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    Science & Medicine, Music & Arts

    The Music of Light: Emily Noyes Vanderpoel’s Colour Analysis Charts (1902)

    The American Woods
    Images / 
    Natural World

    The American Woods

    Colour Wheels, Charts, and Tables Through History
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    Science & Medicine, Music & Arts

    Colour Wheels, Charts, and Tables Through History

    Gynecological Gymnastics from Outer Space (1895)
    Images / 
    Science & Medicine

    Gynecological Gymnastics from Outer Space (1895)

    Views of the Tesseract (1904)
    Images / 
    Science & Medicine

    Views of the Tesseract (1904)

    Manuscript of Ismail al-Jazarī’s Ingenious Mechanical Devices (ca. 17th century)
    Images / 
    Science & Medicine, Technology

    Manuscript of Ismail al-Jazarī’s Ingenious Mechanical Devices (ca. 17th century)