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As the sovereign, however, derives a considerable part of his

revenue from the produce of silver mines, the law in Peru gives

every possible encouragement to the discovery and working of new

ones. Whoever discovers a new mine, is entitled to measure off

two hundred and forty-six feet in length, according to what he

supposes to be the direction of the vein, and half as much in

breadth. He becomes proprietor of this portion of the mine, and

can work it without paving any acknowledgment to the landlord.

The interest of the duke of Cornwall has given occasion to a

regulation nearly of the same kind in that ancient dutchy. In

waste and uninclosed lands, any person who discovers a tin mine

may mark out its limits to a certain extent, which is called

bounding a mine.