"Nothing short of a want of cast iron will confine our friend in England one day after the end of this month. "I am, Gentlemen, "Your very humble servant, "RICHARD TREVITHICK. "MESSRS. HAZELDINE, RASTRICK, AND CO." It seems probable that in 1813 a railway locomotive, with apparatus for rock boring, and steam-crane, was made for South America as the forerunner of the 'Sanspareil' of 1829. [Rough draft.] "GENTLEMEN, "CAMBORNE, _October 1st, 1813_. "I received your favour of the 27th last evening, and now enclose you another draft of Mr. Uville's for 150_l._ We shall wait impatiently for your next letter to know when you will finish. Mind, this is the 1st of October, and agreeable to promise the time is up. Mr. Uville wishes you to cast sixty carriage-wheels for him, 11 inches in diameter from out to out, and to weigh about 20 lbs.; cast them of strong iron, and of a strong pattern, to take a 1-1/2-inch axle by 2-1/2 inches deep in the hole; also cast four plunger-pistons 11 inches diameter to suit the 11-inch working barrels, provided it should be used for the purpose of a plunger. They must be in every respect the same as the 14-inch plunger-pistons, only 3 inches less in diameter. [Illustration] "Soon after the receipt of your next letter you may expect to see us, as a vessel has been engaged to take all the boilers and smith work on board to-morrow week for London. "I remain, Sir, "Your humble servant, "RICHARD TREVITHICK. "MESSRS. HAZELDINE, RASTRICK, AND CO." Probably those cast-iron wheels were ordered with a view to steam locomotion in the Cordilleras. An engine is described in the invoice as having chimney, axles, carriage-wheels, &c. [Rough draft]. "GENTLEMEN, "CAMBORNE, _October 11th, 1813_.