FORE AND AFT COMPOUND ENGINE AND FIRE-BOX BOILER OF THE WOODEN STEAMER J NO. J. HILL. BUILT BY THE DRY DOCK ENGINE WORKS. High pressure cylinder............................................................... 20 inches Low pressure cylinder................................................................ 40 " Stroke...................................................................................... 36 " . Steam furnished by one fire-box boiler 9 feet by 14 feet, plate )4 inch thick; pressure allowed 110 pounds. THE STEAMER J NO. J. HILL, BUILT BY C. T. MORLEY, MARINE CITY, MICH. Length, over all............................................................... 178 feet o inches Length of keel................................................................. 170 " o " Beam............................................................................. 40 " o " Depth............................................................................. 17 feet. Gross tonnage 974, net tonnage 786. 168