1. Wrought Iron: A Valediction
2. 2) R. A. Mott: Henry Cort: The Great Finer, ed. by P. Singer, The Metals Society, London, (1983).
3. 3) C. K. Hyde: The Coal and Iron Industries, ed. by R. A. Church and E. A. Wrigley, Oxford, (1994), 244.
4. 4) T. Turner: The Metallurgy of Iron, 6th ed., Griffin, London, (1920), 339.
5. 5) R. B. Gordon: American Iron, 1607–1900, Johns Hopkins, Baltimore, (1996), 125.