Steam-Powered Tooth Extraction on an Envelope (1894)

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

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

Chladni Figures (1787)

Alexander Graham Bell’s Tetrahedral Kites (1903–9)

Miniatures from a 12th-century Medical and Herbal Collection

The Trouvelot Astronomical Drawings (1882)

Rainbows in Art

The Splash of a Drop (1895)

Illustrations from a Descriptive Iconography of Cacti (1841)

Blue-Sky Thinking: The Influence of the Blue Ray of the Sunlight (1877)

The Surreal Art of Alchemical Diagrams

Images from The Champion Text Book on Embalming (1897)

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

Reed Bontecou’s Portraits of Wounded Soldiers (1865)

Self-Portrait by Ernst Mach (1886)

Plastic Reconstruction of the Face (1918)

Anatomical Illustrations from 15th-century England

Alcohol and the Human Body (1949)

Colour Wheels, Charts, and Tables Through History

Georg Bartisch’s Ophthalmodouleia (1583)

Gynecological Gymnastics from Outer Space (1895)

Watercolours from a 16th-Century De Materia Medica

Chart of the Inner Landscape (1886)