"security of life to all those who go to that country to search for the precious metals."

I believe some of that economic boom the North was experiencing in 62-64 period also had something to do with 'precious metals'. It is said that Abe Lincoln built Virginia City, and the State of Nevada whose 'precious metals' were needed to fund the war.

http://www.territorial-enterprise.com/news2.htm

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David Upton