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The book of illustrious mechanics, of Europe and America. Tr. from the French of Edward Foucaud. New ed., with a supplementary chapter on American mechanics and their inventions. Ed. by John Frost, LL. D.

Men of science and invention, by the editors of American heritage. Narrative by Michael Blow, in consultation with Robert P. Multhauf.

Alphabetical index of patentees of inventions : with an introduction and appendix of additions and corrections compiled in the Patent Office Library / Bennet Woodcroft.