MILLARD FILLMORE.

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.

MILLARD FILLMORE.

WASHINGTON, July 18, 1850.

To the House of Representatives of the United States:

I herewith transmit to the House of Representatives, in compliance with the request contained in their resolution of the 24th day of January last, the information asked for by that resolution, relating to certain proceedings of the British Government in the forcible seizure and occupation of the island of Tigre; also all the "facts, circumstances, and communications within the knowledge of the Executive relative to any seizure or occupation, or attempted seizure or occupation, by the British Government of any port, river, town, territory, or island belonging to or claimed by any of the States of Central America."

The resolution of the House speaks of the island of Tigre, in the State of Nicaragua. I am not aware of the existence of any such island in that State, and presume that the resolution refers to the island of the same name in the Gulf of Fonseca, in the State of Honduras.

The concluding part of the resolution, requesting the President to communicate to the House all treaties not heretofore published which may have been negotiated with any of the States of Central America "by any person acting by authority of the late Administration or under the auspices of the present Administration," so far as it has reference to treaties negotiated with any of those States by instructions from this Government, can not be complied with, inasmuch as those treaties have not been acted upon by the Senate of the United States, and are now in the possession of that body, to whom by the Constitution they are directed to be transmitted for advice in regard to their ratification.