Gunboats On The Lakes - The New York Tribune of the 9th has the following special dispatch from Washington: "The House Naval Committee reported to-day upon the resolution directing them to inquire into the cheapest, most expeditious and trustworthy mode of placing vessels of war upon Lake Ontario and the on the great lakes, including the enlargement of the Erie Canal locks. The conclusion of the report is in these words: The Committee are of the opinion that the cheapest and most trustworthy mode of placing vessels of war upon Lake Ontario and other lakes, should a necessity for doing so at any time arrive, is to launch them in the first instance upon those waters. The Committee considers that it is not necessary nor is it expedient for the purpose aforesaid to establish water communications adopted to the passage of vessels of war from other waters to the lakes."