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Credit
The cause and prevention of decay in teeth : an investigation into the causes of the prevalence of dental caries; to which are appended some suggestions on its prevention, 2nd edition / by James Sim Wallace. Public Domain Mark. Source: Wellcome Collection.
Provider
This material has been provided by the University of Toronto, Harry A Abbott Dentistry Library, through the Medical Heritage Library. The original may be consulted at the Harry A Abbott Dentistry Library, University of Toronto.