Th: Jefferson returns his thanks to mr Cluff for his plan of a floating battery. every thing which may contribute to the defence of our seaport towns is worthy of attention, and every citizen who can advise what may contribute effectually to that deserves well of his country. the plan recommended by mr Cluff is forwarded to the Secretary of the Navy to whose department it belongs to decide upon it, & by him it will be submitted to officers of skill in that line. he salutes mr Cluff with respect.