.See Page 166 Lewis Oliver & Phillips; H. B. Newhall, Agt... New York....................... WEIGHTS AND DIMENSIONS OF LAP-WELDED IRON BOILER FLUES. LIGHT WROUGHT IRON ARTESIAN TUBE AND CASING FOR OIL WELLS VOSE, DINSMORE & Co. CAR SPRINGS, RAILWAY SUPPLIES, FRENCH STEEL, STEEL RAILS, TIRES, &c. Principal Office, 32 Warren St., New York. Branch Offices: 52 Fifth Avenue, Chicago, BARWICK WRENCH COMPANY, Proprietors and Sole Manufacturers of the Barwick Patent Wrench**, Pipe-Tongs. PIPE TONGS, WRENCH AND PLIERS COMBINED IN ONE. All Steel, Six Sizes, Instantly Applied, Convenient and Reliable. ALSO, MANUFACTURERS OF THE CELEBRATED PACKER RATCHET and DRILLS. Adopted by the U. S. Government, and in use in áll Navy Yards Machine Shops in the country. OFFICE, No. 5 PEMBERTON SQUARE, BOSTON. To resist actual compression and bulging, should be used in layers, with inter vening division plates; if used in bulk, should have retaining rings to preven bursting. The duration of spring depends, of course, on its quality. Pure rubber is of little use; it must be vulcanized. It is adulterated with plumbago, though in best springs as much as 40 per cent. foreign substances are used-principally sulphide of lead and soapstone. BOLEN, CRANE & CO. Machinists. Tool Builders 23, 25, 27, 29 PLANE ST., NEWARK, N. J. MANUFACTURERS OF Railroad Tools and Equipments FOR MACHINE SHOPS, SMITH and BOILER SHOPS. PLANERS, DRILLS, SHAPERS, LATHES, BOLT CUTTERS and NUT TAPPING MACHINES, SLOTTING, KEYSEATING, BORING and GEAR CUTTING MACHINES, STEAM HAMMERS OF IMPROVED CONSTRUCTION. WE MANUFACTURE A FIRST-CLASS DIRECT ACTING STEAM PUMP. ALSO STEAM ENGINES, SHAFTING and PULLEYS. New York Leather Hose Manufacturing Co. DARROW, TURNER & CO. 35 SPRUCE ST., NEW YORK, FIRE ENGINE HOSE MADE FROM THE BEST OAK TANNED LEATHER, and of the best workmanship, furnished at short notice. ALSO, Fire Buckets, Couplings, Hose Pipes, Suction Hose, &c. AND Fire Department Supplies Cenerally. All kinds of Repairing to Leather Hose Done at Short Notice. All kinds LEATHER BELTING at Lowest Prices, |