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REFERENCES
- American Bookmaker, The Evolution of the Printing Press, Volume XI, September, 1890-June, 1892, Volume XIII.
- American Dictionary of Printing & Bookmaking, New York, 1894.
- Green, Ralph, The Iron Hand Press in America, 1948.
- Hansard, T. C., Typographia, London, 1825.
- Hoe, Robert, A Short History of the Printing Press, New York, 1902.
- Journal of the Franklin Institute, Abstracts of U. S. Patents Issued, Volume 1 to Volume 13, 1826-32.
- McNamara, Stephen, The Printing Press, Inland Printer, Volume 1, June, 1884, to Volume 4, June, 1887.
- Moore, John W., Historical Notes on Printers and Printing, Concord, N. H., 1886.
- Printers Circular, Phineas Dow, Volume 4, May 1869, p. 91.
- Tucker, Stephen D., History of R. Hoe & Co., unpublished, 1885.
- U. S. Patent Office Records.
- Van Winkle, C. S., The Printers Guide, 3rd Edition, New York, 1836.
- Wilson, F. J. F., and Grey, Douglas, Modern Printing Machinery, London, 1888.
- Wyman, Morrill M.D., Memoir of Daniel Treadwell, Memoirs of the Academy of Arts & Sciences, Volume XI, Part, VI, No. VII, 1888.
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