Treatise on the diseases of the ear : including the anatomy of the orga / by Anton von Tröltsch ; tr. and ed. by D.B. St. John Roosa.

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Treatise on the diseases of the ear : including the anatomy of the orga / by Anton von Tröltsch ; tr. and ed. by D.B. St. John Roosa. Public Domain Mark. Source: Wellcome Collection.

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This material has been provided by the Francis A. Countway Library of Medicine, through the Medical Heritage Library. The original may be consulted at the Francis A. Countway Library of Medicine, Harvard Medical School.