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Showing 1 to 1 of 1 for “"South American silver mines"”.
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A Torrent of Silver: Richard Trevithick, Cornish Miners and Steam Engines in Peru 1815-1828
… reference to the 1822 report he produced on the mines of Cerro de Pasco. In the report he proposed his own company to rehabilitate the steam engines, finish the adit of Quiulacocha, and begin work on the deepest adit, Rumiallana, which would not be finished until 1907. Second, to consider the …