The care of the teeth in public elementary schools : with special reference to what is being done in Germany with specimen of chart used in the dental examination of the L.C.C. Michael Faraday School, designed by the author / by C. Edward Wallis ; issued by the Medical Officers of Schools Association.

Licence: In copyright

Credit: The care of the teeth in public elementary schools : with special reference to what is being done in Germany with specimen of chart used in the dental examination of the L.C.C. Michael Faraday School, designed by the author / by C. Edward Wallis ; issued by the Medical Officers of Schools Association. Source: Wellcome Collection.