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A physiological and pathological inquiry concerning the physical characteristics of the human teeth and gums, the salivary calculus, the lips and tongue, and the fluids of the mouth : together with their respective local and constitutional indications : as read before the American Society of Dental Surgeons, at their second annual meeting, held in Philadelphia, August 11, 1841 / by Chapin A. Harris. Public Domain Mark. Source: Wellcome Collection.
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This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)