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Credit
Histories of American schools for the deaf, 1817-1893. / prepared for the Volta bureau by the principals and superintendents of the schools, and published in commemoration of the four hundredth anniversary of the discovery of America ; edited by Edward Allen Fay. Public Domain Mark. Source: Wellcome Collection.
Provider
This material has been provided by Royal College of Physicians, London. The original may be consulted at Royal College of Physicians, London.