. "Protection across the continent letter from the Secretary of War, in answer to a resolution fo the House of December 6, 1866, transmitting information respecting the protection of the routes across the continent to the Pacific from molestation by hostile Indians"@en . . . . "Protection across the continent. : Letter from the secretary of war, in answer to a resolution of the House of December 6, 1866, transmitting information respecting the protection of the routes across the continent to the Pacific from molestation by hostile Indians"@en . . . . . . . . . . . .