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Operations for Contracted Cicatrices
John Ashhurst, Jr. The Principles and Practice of Surgery (), fig.159, p.306 and fig.160, p.307.
The two illustrations have been conjoined for ease of display.
The photographs on which these are based are included in Laura Lindgren, editor, Mutter Museum: Historic Medical Photographs - The College of Physicans of Philadelphia (New York: Blast Books, 2007), p.40-41.