WASHINGTON, _September 12, 1850_.
The SPEAKER OF THE HOUSE OF REPRESENTATIVES.
SIR: In answer to a resolution of the House of Representatives adopted
September 2, 1850, calling upon me to communicate the full and exact
cost of each of the lines of mail steamers now in service, etc., I
have the honor to transmit herewith reports from the Secretary of
the Navy and Postmaster-General, containing the desired information.