Mineralogia cornubiensis : a treatise on minerals, mines, and mining : containing the theory and natural history of strata, fissures, and lodes : with the methods of discovering and working of tin, copper, and lead mines, and of cleansing and metalizing their products : shewing each particular process for dressing, assaying and smelting of ores : to which is added an explanation of the terms and idioms...

by Pryce, William, 1725?-1790