This statement leaves the reader under the impression that the process was in successful use. It is to be contrasted with the statement quoted above (page 43), dated September 1856, when the process had, clearly, not been perfected. In this connection, it should be noted that in the report on the Suwanee Iron Works, included in _The iron manufacturer's guide_,[104] it is stated that "It is at this furnace that Mr. Kelly's process for refining iron in the hearth has been most fully experimented upon." [104] J. P. Lesley, _op. cit._ (footnote 39), p. 129. The preface is dated April 6, 1859. The data was largely collected by Joseph Lesley of Philadelphia, brother of the author, during a tour of several months. Since Suwanee production is given for 44 weeks only of 1857 (_i.e._, through November 4 or 5, 1857) it is concluded that Lesley's visit was in the last few weeks of 1857. A major financial crisis affected United States business in the fall of 1857. It began in the first week of October and by October 31 the _Economist_ (London) reported that the banks of the United States had "almost universally suspended specie payment."[105] Kelly was involved in this crisis and his plant was closed down. According to Swank,[106] some experiments were made to adapt Kelly's process to need of rolling mills at the Cambria Iron Works in 1857 and 1858, Kelly himself being at Johnstown, at least in June 1858. That the experiments were not particularly successful is suggested by the lack of any American contributions to the correspondence in the English technical journals. Kelly was not mentioned as having done more than interfere with Bessemer's first patent application. The success of the latter in obtaining patents[107] in the United States in November 1856, covering "the conversion of molten crude iron ... into steel or malleable iron, without the use of fuel ..." also escaped the attention of both English and American writers. [105] _Economist_ (London), 1857, vol. 15, pp. 1129, 1209. [106] Swank, _op. cit._ (footnote 42), p. 125. John Fritz, in his _Autobiography_ (New York, 1912, p. 162), refers to experiments during his time at Johnstown, _i.e._, between June 1854 and July 1860. _The iron manufacturer's guide_ (see footnote 104) also refers to Kelly's process as having "just been tried with great success" at Cambria. [107] U.S. patents 16082, dated November 11, 1856, and 16083, dated November 18, 1856. Bessemer's unsuccessful application corresponded with his British patent 2321, of 1855 (see footnote 98).