CHAPTER XXI.

ENGINES FOR SOUTH AMERICA.

Engines for Lima, 1813--Uville's application to Watt--High-pressure model--Cerro de Pasco mines--Uville's return in search of Trevithick--Engines ordered--Pump-work--Modern pumping engines--Money difficulty--Weight of pieces--'Sanspareil' of 1813--Expansive working--Quartz crusher--Locomotive for South America, 1813--Sketch of winding engine--Their simplicity of form--Power and cost of engines--Trevarthen and Bull to accompany the engines--A third man recommended--Boilers put together at Cerro de Pasco--Uville's arrest--Trevithick a shareholder--Vivian's application--Departure of machinery, 1814--Uville's agreement--Invoice of engines sent Page 195-220