Turtle Anatomy (1821)

Images from Anatome Testudinis Europaeae (1819-21) by the German physician and naturalist Ludwig Heinrich Bojanus (1776–1827). Bojanus was born at Bouxwiller in A…more

Fortification Theory (1600)

Images from Jean Errard’s Fortification Réduicte Art and Démonstrée (Paris, 1600), a seminal work in fortification theory. Errard (1554-1610) was a mathematici…more

Illustrations of Ventilation (1869)

Illustrations showing movement of air through various rooms, from Lectures on Ventilation (1869) by Lewis W. Leeds. The full book can be seen here on Internet Archi…more

B. W. Betts’ Geometrical Psychology

Diagrams from Geometrical psychology, or, The science of representation: an abstract of the theories and diagrams of B. W. Betts (1887) by Louisa S. Cook, which det…more

The Embalming Jars of Frederik Ruysch

Frederic Ruysch (1638-1731) was a Dutch botanist and anatomist, remembered mainly for his groundbreaking methods of anatomical preservation and the creation of his …more

Space Colony Art from the 1970s

In the 1970s the Princeton physicist Gerard O’Neill, with the help of NASA Ames Research Center and Stanford University, held a series of space colony summer stud…more

The Mechanism of Human Physiognomy

Plates from Guillaume-Benjamin Duchenne’s ‘Mécanisme de la Physionomie Humaine’, published by Jules Renouard, Paris, in 1862. By applying electrodes to male …more

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