The Charge for Insertion under this head is One Dollar a Line. If the Notices exceed Four Lines, One Dollar and a Half per line will be charged. Send for Agents' Circular—Hinkley Knitting Machine Co., 176 Broadway. Wanted—A partnership in a machinery furnishing business, or a position as mechanical engineer. Address W. C. Zane, Jr., Phil'a, Pa. For Sale—A 20-H. P. link-motion propeller engine, suitable for stationary, good order. Hosford &Garsides,211 Greene st.,Jersey City. Hoop Iron, 7-8 &inch, cut to any length ordered, 5c. Punched, as many holes as ordered, 6c. per lb. Tubs, barrels, bunching shingles, marble, etc., etc. Pugsley &Chapman, 30 Flatt St., New York. j Paper Collars—Wanted, the address of large manufacturers. J. Hollely, 14 High St., Brooklyn, N. T. State Rights of the " Lesperance Ventilator," for sale, illustrated in Scientific American, July 24. Thomas Howard, Postoffiee Box 3088, New York. Parties who desire to manufacture the best patent revolving road scraper in existence. address J. W. Wilson, Somerford.Madison Co.,O. For Sale—A half interest in a patent saw set, that does its work positive and exact, upon all saws, from a jig or whip saw to a cross cut. No mechanical skill required. Address N. B. Tyler, Warren, Ohio. Lathe wanted—A screw-cutting lathe, 24-in. swing, to take in 14 ft. Address, stating condition and lowest net cash price, Box 3329 New York Postofliee. " The Chicago Railway Review(says the Philadelphia Railroad Register),—a paper to which we owe more of our knowledge of railroad matters in the West.than to all our other exchanges put together." $2 per year. Address Fowler &Brooks, Chicago, 111. Advertisements received. Automatic Lathes, for spools and tassel molds, made by H. H. Frary, Jonesville, Vt. If you want the real oak-tanned leather-belting, C. W. Arny manufactures it. See advertisement. Peck's patent drop press. For circulars, address the sole manufacturers, Milo Peck &Co., New Haven, Ct. New Machine for Grinding Tools.etc, great saving of files and labor by their use. Address American Twist Drill Co., Woonsocket, E. I. A good engine &boiler wanted. Wm. Louden, Fairfield Jowa. Grindstones are kept true and sharp by using Geo. C. Howard's Patent Hacker. Send for circular 17 S. 18th St., Philadelphia. Balloon netting, strong and large, for sale. Box 896, Dayton,O. Cochrane's low water steam port—The best safeguard against explosions and burning. Manufactured by J. C. Cochrane.Bochestcr.N.Y. The Phrenocinopticon—An application of the principle of the Zoetrope to the Magic Lantern. Patent for sale. Send for circular. O. B. Brown, 126 Tremont St., Boston. Send for a circular on the uses oi Soluble Glass, or Silicates of Soda and Potash. Manufactured by L. &J. W. Feuchtwanger, Chemists and Drug Importers, 55 Cedar St., New York. To Manufacturers or Patentees.—Wanted—By a responsible hardware house, long established in the city of New York, the agency or the right to manufacture.some good patented article in their line of trade. Address P. D. &Co., Postofflce Box 3,517. Mill-stone dressing diamond machine, simple, effective, durable Also, Glazier's diamonds. John Dickinson, 64 Nassau St., New York. Leschot's Patent Diamond-pointed Steam Drills save, on the average, fifty per cent of the cost of rock drilling. Manufactured only by Severance &Holt, 16 Wall St., New York. Tempered steel spiral springs made to order. John Chatillon, 91 and 93 Cliff St., New York. The Tanite Emery Wheel—see advertisement on inside page. For solid wrought-iron beams, etc., see advertisement. Address Union Iron Millfl, Pittsburgh, Pa., for lithograph, etc. Machinists, boiler makers, tinners, and workers of sheet metals read advertisement of Parker's 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, 64 Nassau St., New York. The paper that meets the eye of manufacturers throughout the United States—The Boston Bulletin. $4'00 a year. Adv'g 17c, a line. Winans' boiler powder, If Wall St., N. Y., removes Incrustations without injury or foaming 12 years in use. Beware of imitations.