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Show The PiiopRiKiOHS of the Silver Islet mine in Lake Superior havo been successful suc-cessful in finding upon the mainland opposite the island the same vein of ore which has proved so astonishingly rich in their present mine. It was discovered, as we are told, at a depth of Bixty feet below the surface. From Silver Islet, ore to the value of $800,-000 $800,-000 has been taken in about ten mouths, and the vein seems to grow richer the deeper it is worked. There is no telling what stores of mineral wealth arc laid up iu the rocks and mountains around Lake Superior. Ex. |