Imperfect hearing and the hygiene of the ear : including nervous symptoms, tinnitus aurium, aural vertigo, diseases of the naso-pharyngeal membrane, middle ear, and mastoid region : with home instruction of the deaf / by Laurence Turnbull.

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Imperfect hearing and the hygiene of the ear : including nervous symptoms, tinnitus aurium, aural vertigo, diseases of the naso-pharyngeal membrane, middle ear, and mastoid region : with home instruction of the deaf / by Laurence Turnbull. 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.