To ascertain where there will be a demand for new machinery or manufacturers' supplies read Boston Commercial Bulletin's manufacturing news of the United States. Terms $4.00 a year. Superheated Steam House Furnace. Pure Air. Efficient. Automatic. Safe. Controlable. Unequaled. Tested. Cheap. Circulars. H. G. Bulkley, New York. Foot Lathes—E. P. Ryder's improved—220 Center st., N. Y. Read the advertisement of A. Danl, International Agent. For Sale—The Undivided halfofU.S.Patent for Elastic Broom Iron, Patented July, 1869. J. M. Allison, Cranberry P.O., Venan^^o.,Pa. Wanted—Tough, heavy card board, in large quantities, 12x15 inches. Address, with sample and price, W. S.&“V. N. Poulson, Cadiz, O. Tables to Compute Wages, by the day and by the hour—most perfect system published. Address,for eircnIar,Lester Hayes,Clevcland,O. For Sale Cheap—The entire interest of a new horse hay rake, warranted to be absolutely superior to all others. 81000 wanted to hire on it, for which 2 5 per ocnt will be given. II.N. Green, Whitney's Point, Broome county, N. Y. Improved Hydraulic Press, with elevating shaft attached. No. 83,121. Right for sale. Address .7. B. Tunstall, Boydton, Va. Aquatic Velocipedo, invented by Lewis D. Bunn. Patent for sale. ::3ee advertisement on back page. For best quality Gray Iron Small Castings, plain and fancy Apply to the Whitneyville Foundery, near New Haven, Conn. KeuflU&Esser,71 Nassau st.,N.Y.,the best place to get Ist-class Drawing .Materials, Swiss Instruments, and Rubber Triangles and Curve s Peck's patent drop press. For circulars, address the sole manufacturers, lililo Peck&Co., New Haven, Cr. 'Thos8 wanting latest improved Hub and Spoke Machinery, address Kcitcnring, Strong Lauster, Defiance, Ohio. For Aluminum Bronze and Oroide Watches, Chains,and .Jewelry, send to Oroide Watch Co., Boston, U. S. Price list sent free. For Sale—A patent for a composition for covering steam boilers, pipes, etc. E. D.&W. A. French, 3d and Vine sts., Camden, N. J. For tinmans' tools, presses, etc., apply to Mays&Bliss, Brooklyn, N. Y. Mill-stone dressing diamond machine, simple, effective, durable. Also, Glazier's diamonds. John Dickinson, 64 Nassau st., New York. Send for a circular on the uses of Soluble Glass, or Silicates of Soda and Potash. Manufactured by L.&.J. W. Feuchtwanger, Chemists and Drug Importers, 55 Cedar st., New York. Glynn's Anti-Incrustator for Steam Boiler—The only reliable preventative. ]So foaming,and does not attack metals of boiler. Liberal terms to Agents. C. D. Fredricks, 587 Broadway, New York. Cold Rolled—Shafting,piston rods,pump rods,Collins pat.double compression couplings,,Pittsburgh,Pa. For solid wrought-iron beams, etc., see advertisement. Address Union Iron Millo, Pittsburgh, Pa., for lithograph, etc. Machinists, boiler makers, tinners, and workers of sheet metals read advertisement of the Parker Power Presses. Diamond carbon, formed into wedge or other shapes for pointing and edging tools or cutters for drilling and working stone, etc. Send stamp forcircular. John Dickinson, 61 Nassau st.. New York. The pa,per that meets the eye of manufacturers throughout the United States-Boston Bulletin, $4'00 a year. Advertisements 17c. a line. Winans' boiler powder, 11 Wall st., N. Y., removes Incrusta. tJons without injury or foaming; 12 year, in nse. Beware of Imitations, © 1869 SCIENTIFIC AMERICAN, INC
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