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Mr. RICHARD PEARCE, F.G.S., OF DENVER, COLORADO, ON 



PROSPECTING FOR GOLD, AND ON THE GENERAL 



PROMOTION OF MINING, IN CORNWALL. 



As all matters relating to Cornish Mining are regarded as 

 highly important and interesting, it is deemed desirable here to 

 insert an extension of the short-hand-writers' notes, taken at 

 the Rojal Institution of Cornwall Spring Meeting, 1896, when 

 special allusion was made to Gold-Mining, &e., in Cornwall: — 



Mr. Richard Pearce, in the outset of his address, said that 

 he would describe some specimens of mineral from what was 

 known as the Cripple Creek District in Colorado, — a district 

 which had recently been the source of great excitement. He 

 thought possibly some members of the Institution might be 

 glad to hear an account of the peculiar deposits of gold in the 

 Cripple Creek district. They probably knew that by the 

 depreciation of silver, Colorado mining was reduced to a com- 

 paratively low point, and that the miners turned their attention 

 from silver to gold. One of the first results of their investiga- 

 tion in that direction was the discovery of gold in a new district 

 entirely — a district in which they had no suspicion that gold 

 existed. In fact, Cripple Creek never presented the peculiar 

 conditions which most gold districts offered in the way of out- 

 crops and well-defined fissure veins, so that the district had been 

 neglected by the prospector until within the last five years. 

 Cripple Creek was almost at the base of the celebrated mountain 

 known as Pike's Peak, which was one of the most prominent 

 points in the Pocky Mountains, and was of granite. At the 

 base of the mountain they had discovered a number of intrusive 

 rocks, probably of the tertiary period, some of them were 

 called andecites, and others classed as phonolites. He Avas sorry 

 that a more extensive collection was not before them that day. 

 He had requested samples to be sent on to New York, but they 

 had not arrived there when he sailed. Instructions were given 

 by him for them to be forwarded, but he had not received them, 



