406 FOREIGN MINING REGIONS. 



21. In England there are two great metalliferous dis« 

 tricts. 



A. On the southwest, in Cornwall, and the adjoining 

 county of Devonshire. Ores. Pyritous copper and various 

 other copper ores, tin ore, galena, with some bismuth, co- 

 balt, nickel, and antimony ores, affording principally copper, 

 tin, and lead. Rocks. Granite, gneiss, micaceous and ar- 

 gillaceous schist. 



B. On the North, in Cumberland, the adjoining parts of 

 Durham, with Yorkshire and Derbyshire, just south. Ores 

 Galena, and other lead ores, blende, copper ores, calamine 

 (the last especially at Alstonmoor in Cumberland, and 

 Castleton and Matlock, in Derbyshire,) affording largely of 

 zinc, and three-fifths of the lead of Great Britain, and some 

 copper. Rock. Carboniferous limestone. 



C. There is also a rich vein of calamine, blende, and ga- 

 lena, in the same limestone at Holywell, in Flintshire, on 

 the nosth of Wales ; another of calamine at Mendip Hills, 

 in Southern England, south of the Bristol channel, in Som- 

 ersetshire, occurring in magnesian limestone ; mines of 

 copper on the isle of Anglesey, in North Wales, in Westmore- 

 land and the adjacent parts of Cumberland and Lancashire, 

 in the southwest of Scotland, the Isle of Man, and at Ecton 

 in Staffordshire, &c. 



22. In Spain, there are mines — 



A. On the south, in the mountains near the Mediterranean 

 coast, in New Grenada, and east to Carthagena, in Murcia ; 

 situated in New Grenada, in the Sierra Nevada, or the moun- 

 tains of Alpuj arras, the Sierra Almagrera, the Sierra de Ga- 

 dor, just back of Almeria, and at Almazarron near Cartha- 

 gena. Ore. Galena, which is argentiferous at the Sierra 

 Almagrera, and at Almazarron, affording full 1 per cent, of 

 silver. Rock. Limestone, associated with schist and crys- 

 talline rocks. 



B. The vicinity of the range of mountains running west- 

 ward from Alcaraz, (in the district of La Mancha,) to Por- 

 tugal. 1. On the south, near the center of the district of 

 Jaen, at Linares, latitude 38° 5', longitude 3° 40. Ores. 

 Galena, carbonate of lead, red copper ore, malachite, in 

 granite and schists ; affording lead and copper. 2. In La 

 Mancha, at Alcaraz, northeast of Linares, latitude 38° 45' 

 Ores. Calamine affording abundantly zinc. 3. In the 

 west extremity of La Mancha, near latitude 38° 38 at 



