FROM THE RAPIDS.Extract of a letter from Mr. IV. Oliver to Maj. Hufiiriy fiost master in this filacc, dated. “Fort Find lay, 29 Afrit 1813. “ Yesterday I It ft the British anti their savage allies in possession of the oposite shore at the Rapids, trying the force of rifles on the fort. The British have come with all their force, evidently with a design of reducing fort Meigs. They have several gun-boats, on board which they transported their troops Sc stores.—Capt. Hamilton reckons their force at 3000, as he had a view of them when under -arms.— Should they cross over and give battle, as is no doubt their intention, they will get whipped ; as British toleration, in acts of urbanity, with their tawney allies, has worked the feelings and resentment of1 our troops to such a pitch, that no force, however superior, can damp their determined bravery. I am now on my way to meet gen. Clay—I expect to find him tonight. Our troops, are in fine spirits, tho' menaced by a formidable force.”