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Observations on the surgical pathology of the larynx and trachea, chiefly with a view to illustrate the affections of those organs which may require the operation of bronchotomy: including remarks on croup, cynanche laryngea, injuries by swallowing acids and boiling water, foreign bodies in the windpipe, asphyxia, wounds, etc / [William Henry Porter]. Public Domain Mark. Source: Wellcome Collection.