Letter from the Secretary of the Treasury transmitting the report of R. W. Raymond on the statistics of mines and mining west of the Rocky Mountains. TREASURY DEPARTMENT, March 17, 1870. SIR: I have the honor to transmit the report of Rossiter W. Raymond on the statistics of mines and mining in the States and Territories west of the Rocky Mountains. Very respectfully, your obedient servant, Hon. JAMES G. BLAINE, GEO. S. BOUTWELL, Secretary of the Treasury. Speaker of the House of Representatives. |