Floating Elevator. A floating elevator has been moored at the foot of West Cayuga street. It is named the F.D. Harrison, hails from Buffalo, and is destined for Ogdensburgh. The Harrison was towed to this port from the Welland canal by the propeller City of Boston and has been purchased by the Northern Transportation Co. for service at Ogdensburgh. Its capacity for elevating is stated at between 5,000 and 6,000 bushels.