[Footnote 6: Of ship channel of Penobscot River from Whitehead to
Bangor, Me.]
_March 27, 1830_.
_To the Senate and House of Representatives of the United States_.
GENTLEMEN: I transmit, for the consideration of Congress, a letter of
the Secretary of the Navy, accompanying the reports of Lieutenants
Tattnall and Gedney, who were detailed to make a survey of the Dry
Tortugas, and beg leave to call your attention to the importance of the
position to the United States as a naval station. I also respectfully
recommend that the appropriation necessary to make a scientific
examination of its capacities for defense may be granted.