Picked Up. - Capt. Barrow, of the schooner "Andover," of this city, reports on the 17th picked up a man from the wreck of the schooner "Visitor" loaded, with stone for Toledo, about three miles from the island West Sister, at the head of Lake Erie. The man was in an exhausted condition, having supported himself on the peak of the mast for 12 hours. The Captain and he were the only persons aboard the vessel when she went down, and the former sunk some six hours before Capt. Barrow came along.