rom the use of ball Telephone system, duplex multiple metallic, F. everywhere, and always worth it. bearings anu pneumatic tires in road vehicles. Con- C. Hughes 646.121 Always the Best. ISOOSeed Annual free. tained in Scientific American Supplement, No. A COMPLETE Telephone transmitter, A.… … Twyer for forge furnaces. J. Eastep et al 645.94,5 Five volum&t, 1,300 pagen. Electricity Simplifled, 158 Type setting machine. P. F. Cox 646.:158 and over l*50 illustrations. pages, fl.OO TME Typewriter kevboard mechanism. E. B. Kirby— 640.224 l!M:):]kVetaMMaHk^l Valve, blow ofl", F. M. Faber.…
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