Crosby Patent Saw Buckle, advertised in No. 9, Vol. 20, cuts nine millions per gang, instead of five. Pickerings Velocipede, 144 Greene st., New York. Manufacturers of the best machine for making wagon and carriage hubs please address, stating price, etc., Postoffice Box &4 F., London, Ontario. S. S. Pollards celebrated mill pick, established 1837. 137 Raymond St., Brooklyn, N. Y. Inventors and Manufacturers Gazette—An illustrated journal of new inventions and manufactures. February number now out. Cheapest paper in the world. $1 per year. Sample copies sent. Address Saltiel &, Co., Postofflce box 448, New York City, or 37 Park Kow. Great inducements to manufacturers oi small machinery. License granted for a royalty. Send for cut and description to M. V. Collins, Sherman, N. Y. Important—Green lumber dried in two days. Also, tobacco, meal, and every substance, cheaply. Circulars free. H. G Bulkley, 135 Fulton st., New York. True principles for oiling journals—see Wickershams advert. To watchmakers and dealers in watches—Wanted, agents in every City,County,& State in America,and all parts of the globe for Arthur Wadswofths patents. Apply to Patentee, Watch Factory, Newark, N. J. For sale low—Three second-hand presses for punching nuts and washers, all sizes, and other work. Punches and dies for same. Address Geo. H. Hawes, Fall River, Mass. Best Coal Tar Benzole, from Morson & Sons, London, for sale by T. Metcalf & Co., Tremont st., Boston. Manufacturers or inventors of meat and vegetable chopping inachlnes,address and send circulars to Phil. Tomppert,Jr., Louisville, liy. Two-set knitting mill for sale—See advertisement back page. Pecks patent drop press. Milo Peck & Co., New Haven, Ct. Glynns anti-incrustator for steam boilers—the only reliable preventive. Causes no foaming, and does not attack the metals of the boiler. Liberal terms to Agents. Address M. A. Glynn & Co., 735 Broad, way, New York. W. J. T.—We think the patent asbestos roofing manufactured by H. W. Johns, of this city, is the best substitute for tin or slate. It is cheap and easily applied. Inventors and patentees wishing to get small, light articles manufactured for them in German silver or brass, address Schofl.eld Brothers, Plainville, Mass. Tempered steel spiral springs. John Chatillon, 91 and 93 Cliff St., New York. Two saw mills for sale. C. Bridgman, St. Cloud, Minn. Rockweod, 839 Broadway, N. Y., photographs architectural or mechanical drawings and plans to a scale. Also,photographs of machinery. For solid wrought-iron beams, etc., see advertisement. Address Union Iron Mills, Pittsburgh, Pa., for lithograph, etc. Change Gear-wheel Tables.—See Walter& Sons advertisement. Punching and shearing machines. Doty Manufacturing Co., JanesviUe, Wis. Specialties in the Machinists line. Parties desiring work of a special character address S. W. Gardiner, 6 Ailing st., Newark, N. J. The greatest attraction in the Mechanics Hall, at the New York State Fair,was the wonderful scroll saw exhibited by J. W. Mount. —See New York Times, Oct. 16,1868. All who are interested in scroll saws should address the exhibitor at Medina Iron Works Medina, N. Y. Ericssons Caloric Engines.—Where a light, safe, economical power is required, these engines—of late greatly improved in construction as well as reduced in price—answer an admirable purpose. Apply to James A. Robinson, 164 Duane st., New York. Responsible and practical engineers pronounce the Tupper Grate Bar the best in use. Send for a pamphlet. L. B. Tupper, 120 West st., N.Y. Iron.—W. D. McGowanron broker,73 Water st., Pittsburgh,Pa. N. C. Stiles pat. punching and drop presses, Middletown, Ct. Winans boiler powder, N. Y., removes and prevents incrustations without injury or foaming; 12 years in use. Beware of imitations. The paper that meets the eye of all the leading manufacturers throughout the United States—The Boston Bulletin. $4 a year.