Text this: Letter from the Secretary of the Treasury, transmitting, in response to Senate resolution of February 8, 1882, a communication from the Light-House Board of the 9th instant, inclosing copies of reports of the board and its officers regarding the merits of systems for lighting harbors, &c., by compressed gas; also, regarding the working of the invention of John M. Foster, with publications and drawings illustrative of the same, &c.