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The human teeth : a popular treatise on their care and preservation, and the effect of diseased teeth in causing various constitutional derangements with practical remarks on the filling and extraction of teeth, and the insertion of artificial substitutes and a précis of the "Dentists' Act" of July, 1878, showing how to discriminate between qualified and unqialified dental practitioners / by J.J. Musgrave. Public Domain Mark. Source: Wellcome Collection.