[ 33]Ibid., p. 823
[ 34]Bessemer, op. cit. (footnote 7), p. 169
[ 35]Mining Journal, 1856, vol. 26, p. 631
[ 36]James Renton's process (U.S. patent 8613, December 23, 1851) had been developed at Newark, New Jersey, in 1854. It was a modification of the puddling furnace, in which the ore and carbon were heated in tubs, utilizing the waste heat of the reverberatory furnace (see the Mechanics' Magazine, vol. 62, p. 246, 1855). Renton died at Newark in September 1856 (Mechanics' Magazine, 1856, vol. 65, p. 422)
[ 37]Mining Journal, 1857, vol. 27, p. 193