An itinerant surgeon extracting stones from a man's head; symbolising the expulsion of 'folly' (insanity), they are surrounded by a group of people. Pencil drawing by P. Quast, 1645.

Six diagrams illustrating various clubfeet and operations demonstrating how to cure them. Coloured lithograph by J.B.F. Léveillé after N.H. Jacob.

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