, however, amount of bituminous coal consumed at Safe Harbor Rolling Mill in Convention of Iron Masters, op. cit., Appendix, Table 3. 12. The Columbia Spy, 2 February 1856; George H. Burgess and Miles C. Kennedy, Centennial History of The Pennsylvania Railroad Company: 1846-1946 (Philadelphia, PA.: The

Met in Philadelphia on the 30th of December, 1849 (Philadelphia, Pa.: The General Committee, 1850), pp. 1-8. 3. Louis Hartz, Economic Policy and Democratic Thought: Pennsylvania, 1776-1860 (Cambridge, Mass.: Harvard University Press, 1948), p. 15; Victor S. Clark, History of Manufactures in the United