* * * * * Manufacturers' Depot. SPOKES, HUBS, WHEELS, And a general assortment of Carriage and Wagon Wood work. The above goods are of our own manufacture, which enables us to offer better inducements than any other House in the city. N.G. OLDS & SON, 51 Murray st., New York. * * * * * ROOT'S WROUGHT IRON SECTIONAL Safety Boiler. Composed of best Wrought Iron Tubes, tested to 500 pounds; no large sheet iron, shell or thin cast iron to explode. Absolutely safe, economical, durable, and efficient. Send for pamphlet. Also, Steam Engines, Steam Pumps, etc. ROOT STEAM ENGINE CO., 95 and 97 Liberty St., New York. * * * * * FOR SALE--A 60-H.P. Root's Sectional Safety Boiler, at Atlantic Sugar Refinery. Brooklyn. Apply to LABATT & CO., 111 Front st., New York. * * * * * POWER PLEDGED Equal to any overshot, with N.F. BURNHAM'S New Turbine Water Wheel. Illustrated Pamphlet, for 1870, "with Reduced Price List," sent free by N.F. BURNHAM, "Patentee," York, Pa., or S.N. Hartwell, "Ag't," 98 Liberty st., N.Y. [Illustration] * * * * * The Woven Wire Mattress Co. OF HARTFORD, CONN., Call attention to the fact, that they have established AN AGENCY in the City of NEW YORK, at 82 E. Ninth St., opposite the store of A. T. Stewart & Co., for the sale of the Woven Wire Mattress. All who are interested in the article in this No. of the Scientific American, all who admired its qualities at the American Institute Fair, and all who desire A PERFECT BED, are requested to call at the Agency and examine it. The Mattresses are for sale by many of the Furniture Dealers in the city, and also throughout New England. If your furniture dealer does NOT keep them, order one through him, at the Agency in New York, or directly from the Co. Send for circulars, rights, or any information desired, to GEO. C. PERKINS, Sup't, Hartford, Ct. * * * * * STEREOSCOPES WITH ENDLESS CHAIN--To hold from 3 to 50 doz. pictures, in great variety, at the Patentee's manufactory. ALX BECKER, 560 Broadway, N.Y. * * * * * TO INVENTORS AND MANUFACTURERS IN THE UNITED STATES--