[Mine and geologic reports]. 194 -195.

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[Mine and geologic reports]. 194 -195.

Reports primarily concerning minerals other than gold and silver (e.g., manganese; fluorspar), and primarily of areas in the western U.S., although reports on other areas (e.g., Arkansas; Cuba; Mexico) are included. Mr. Thomas worked as a consulting mining engineer, based in Denver.

2 boxes : ill., maps ; 24 x 34 x 24 cm.

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Thomas, Sewell, 1884-

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