New Men-of-war Completed

-The íollowing now eteam rnon-of-war have been completad within the last two rnonth?, aiid are reported ready for sea: The s'.de-wheol steamer Mahrata, at Portsmouth, New Hamphshire, ordered to James River; gunboat Tioga, now on her trial trip frotn Boston ; gunboat Adirondack, ready for sea at Brooklyn New York; gunboat Cimeron, finished at Bordentown, New Jersey, and now being armed at Pliiladelphia; side wheel steamer Genesee; steamer Sonora, New Hampshire; gunboat Juniatn, ready íor sea at Pliiladelphia; gunboat Hearsay, Portsmouth navy yard ; gunboat Paul Jones, sailed with sealed orders from Washington navy yard. One of these vessels is undergoing tri fling repairs. The keel ol another new gun boat, th Shenandoah, was laid at Phihidelphia a few days since. The new Ironsides is to be finished by the 15th inst.