Europe consumes an enormous $100,000,000, or considerably more quantity of copper, and for a than all the gold produced in this heavy proportion of it she must de- country during an equal interval. pend upon the United States. One of the ‘most interesting cop- Perhaps even more impressive is the… … United States was estimated at cast in the form of “anodes’—slabs one hundred tons, of which Mich- about three feet in length, with a hoisting buckets of rock by means of a windlass, as in hook at one end which facilitates the suspension of igan yielded a dozen tons. From that time forwara the old…
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