The Charge for insertion under this head is One Dollar a Line. Lf the Notices exceed Four Lines. One Dollar and a Half per line will be charged. Green lumber dried in two days. Also, tobacco,meal,and every stance,cheaply. Circulars free. H. G. Bulkley, iSS Fulton st.,New York. Those wanting latest improved Hub and Spoke Machinery, address Kettenring, Strong&Lauster, Defiance, Ohio. Wanted—Cheap, clear boards, 3-ft. long, 3-4 or 7-8 in. thick. Elm. Birch, or Oak, by the car load. W. Roberts, 34 Platt st,, New York. For Sale—Playing card and Printers' card board factory, now now doing a large business. Address S. Longley, Cincinnati, Ohio. The Watch—Its history, construction, how to choose and how to use it. Illustrated. This useful work, neatly bound, price, postpaid, 60c. Address the author, H. F. Piaget, Watch Repairer, 119 Fulton sUN.Y. Valuable Patent (combined Table and Cradle) for sale. Can be manufactured as a Toy,or an article ofuse. Will sell rapidly as either. Philadelphia Patent and Novelty Co., 717 Spring Garden st. For Aluminum Bronzeand Oroide Watch.es, 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. A^o, 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. Peck's patent drop press. Milo Peck&Co., New Haven, Ct. Glynn's Anti-Incrustator for Steam Boiler—The only reliable preventative. No foamlng,and does not attack metals of boiler. Liberal terms to Agents. C. D. Fredricks, 587 Broadway, New York. Chemicals, Drugs, Minerals, Metals, Acids,etc., for all Mechanics and Manufacturers, for sale by L.&J. W. Feuchtwanger, Chemists, and Importers of Drugs and Minerals, 55 Cedar st., New York. Cold Rolled—Shaftingpiston rods,pump rods,Collins pat.double compression couplings,manufactured by Jones&Laughlins,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 for circular. John Dickinson. 61 Nassau, st.. New York. Winans' boiler powder, 11 Wall st., N. Y., removes Incrustations without injury or foaming; 12 years in use. Beware of Imitations. CMY _ SUBSCRIBERS. — The SCIENTIFIC ^ERICAN will be delivered in every part of the city at $3'50 a year. Single copies for sale at all the News Starids,in this city, Brooklyn, Jersey City, and Williams burgh, and by most of the News Dealers in the United States. Caveats are desirable if an inventor is not fully prepared to apply for his patent. A Caveat affords protection for one year against the issue of a patent to another for the same invention. Patent fee on filing a Caveat, $10. Agency charge forpreparing and filing the documents from $10 to ,12. Address MUNN&CO., 37 Park Row, New York. Inventions Examined at the Patent Office.--Inventors can have a careful search made at the Patent Office Into the novelty of their inventions, and receive a report in writing as to the probable success of an application. Send sketch and description by mail, inclosing fee of $5. Address MUNN&CO ., 37 Park Row, New York.