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Dr. Charles T. Jackson's report to the trustees of Lake Superior Copper Company November, 1845
- "Report to the trustees of Lake Superior Copper Company"
- "Report to the trustees of Lake Superior Copper Company"@en
- "Dr. Charles T. Jackson's report to the trustees of Lake Superior Copper Company November, 1845"
- "Dr. Charles T. Jackson's report to the trustees of Lake Superior Copper Company November, 1845"@en