Page 11 inches in diameter and the stroke is 36 inches. The two boilers, of Scotch type, were built by the Toledo Shipbuilding Company, Inc. Each boiler is 14 feet in diameter and 10 feet, 6 inches long and the working steam pressure is 185 pounds per square inch. Cold forced draft is used. The main engine develops 1300 horsepower normally and 1800 horsepower, maximum. A solid four bladed propeller is used and it is 11 feet in diameter and 13 feet in pitch. It was cast and machined by the Great Lakes Engineering Works. The vessel throughout is fully equipped with modem type steam driven auxiliaries. Various pumps were supplied by Worthington Pump & Machinery Corp. The windlass and the steering engine, the latter of the type which is directly connected to quadrant, were both supplied by the Hyde Windlass Company. Freight gangplanks are lowered and raised by two Drake winches made by the Drake Engine Company, Grand Haven, Michigan. There are also two Jacques hand winches for the passenger gangplanks and four Jacques hand winches for the life boat davits. Two 15-kilowatt Engberg reciprocating steam engine driven generators have been installed for lighting and other electrical requirements. There is also an auxiliary 5-kilowatt Westinghouse turbine driven generating set. Valves of various kinds in the engine room and elsewhere have been supplied by three manufacturers, there being valves of Leslie, Powell and Crane Company onboard this vessel. There is a Worthington jet condenser and a Reilly feed water heater. The searchlight is of the Sperry type. The building of the ferry Cadillac is an excellent illustration of that demand for vessels of various classes for our own domestic purposes as population and wealth increases and traffic grows. The business maintained by this company is profitable and is constantly expanding. It may be that another year will make it necessary to still further increase the fleet. Passenger Cabin aft on CADILLAC Postscript: The Cadillac remained in service for ten years until the opening of the Ambassador Bridge (1929) and the Detroit/Windsor Tunnel (1930) made the ferry service unprofitable. During World War II she was sold to the U.S. War Shipping Administration and renamed USS Arrowhead for the U.S. Coast Guard. According to a newspaper story, "After World War II some of its auto space and cabins were transformed into more spacious day-cruising quarters and the Cadillac operated across Lake Erie between Cleveland and Erieau, Ontario." In 1949, the Cadillac was purchased at a tax auction for $48,000 by the T.J. McCarthy Steamship Company in Detroit. In November, 1952 she was sold to the Hamilton Harbor Commission for use in harbor excursions and renamed Lady Hamilton. The vessel was finally scrapped in 1962. Pilot House and Bridge Deck