Collection: Washington :: Government Printing Office, / Topic: Geology -- United States - Topics - Michigan Memories Search Results

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1. Report of the Geological Exploration of the Fortieth Parallel, made by order of the Secretary of War according to acts of Congress of March 2, 1867, and March 3, 1869 / under the direction of A. A. Humphreys by Clarence King.

2. Report of the Geological Exploration of the Fortieth Parallel, made by order of the Secretary of War according to acts of Congress of March 2, 1867, and March 3, 1869 / under the direction of A. A. Humphreys by Clarence King.

3. Report of the Geological Exploration of the Fortieth Parallel, made by order of the Secretary of War according to acts of Congress of March 2, 1867, and March 3, 1869 / under the direction of A. A. Humphreys by Clarence King.

4. Report of the Geological Exploration of the Fortieth Parallel, made by order of the Secretary of War according to acts of Congress of March 2, 1867, and March 3, 1869 / under the direction of A. A. Humphreys by Clarence King.

5. Report of the Geological Exploration of the Fortieth Parallel, made by order of the Secretary of War according to acts of Congress of March 2, 1867, and March 3, 1869 / under the direction of A. A. Humphreys by Clarence King.

6. Report of the Geological Exploration of the Fortieth Parallel, made by order of the Secretary of War according to acts of Congress of March 2, 1867, and March 3, 1869 / under the direction of A. A. Humphreys by Clarence King.

7. Report of the Geological Exploration of the Fortieth Parallel, made by order of the Secretary of War according to acts of Congress of March 2, 1867, and March 3, 1869 / under the direction of A. A. Humphreys by Clarence King.