GROUP XIX. VESSELS AND APPARATUS OF TRANSPORTATION, NOT INCLUDED IN OTHER GROUPS. Class 590.—Suspended-cable railways. Class 591.—Transporting cables. Class 592.—Balloons, and apparatus, etc. Class 593.—See Group XX. Class 594.—Boats and sailing vessels. Sailing vessels used in commerce. Sailing vessels used in war. Yachts and pleasure boats. Rowing boats of all kinds. Life boats and salvage apparatus, with life-rafts, belts, etc. Submarine armor, diving bells, etc. Ice boats. Class 595.—Steamships, steamboats, and all vessels propelled by steam. Class 554.—Screw propellers; wheels for the propulsion of vessels, etc. Class 596.—Vessels for carrying telegraph cables and railway trains; also coal barges, water boats, and dredging-machines; screw ana floating docks; and for other special purposes. Class 597.—Steam capstans, windlass, deck-winches, and steering apparatus. Class 287.—Ropes, cordage. vii