WASHINGTON, _July 17, 1850_.
_To the Senate of the United States_:
In answer to a resolution of the Senate of the 1st instant, requesting
the President to furnish the Senate with "the report and map of
Lieutenant J.D. Webster, Corps of Topographical Engineers, of a survey
of the Gulf coast at the mouth of the Rio Grande and its vicinity,"
and in compliance therewith, I transmit herewith a report from the
Secretary of War, accompanied by the report and map above referred to.