LOUISVILLE ROLLING MILL COMPANY, MANUFACTURERS OF BOILER, BAR, AND SHEET IRON, (CHARCOAL AND PUDDLED.) Flue Plates; Railroad Axles, Chairs and Spikes, PLOW SLABS, WINGS, BOLTS, &C. Office and Store 640 Main street, corner Fifth. J. C. COLEMAN, President. This establishment is one of the largest in the city and forms a very important branch of Louisville manufactures; not only in the way of affording employment and the means of living to a large number of persons, but also by attracting from every part of this Great Valley an important branch of its trade. The company is organized in the best possible manner; the mill contains all the scientific improvements in this description of manufacture, and the energetic President of the company possesses all the requisites which could tend to guarantee the success of the concern. The Iron made here has been fully tested all over the West and commands every market into which it is introduced. The company have testimonials of the most flattering character from all the iron-workers of Louisville, who pronounce it "_fully equal if not superior to any Iron they have ever worked_, and more uniform in its quality than any other Iron." Similar testimonials have been received from the superintendents of the Louisville and Frankfort, the New Albany and Salem, the Jeffersonville, the Vicksburg and Jackson, and other Railroads, as well as from Col. Long, superintendent of the U. S. Marine Hospital. The following letter is a fair specimen of the favor with which the company's Iron is everywhere regarded, and is only one of many such constantly received by them. It is dated CLEVELAND, OHIO, May 1, 1852. We are now using, and have, within the past year, used some fifty tons of the Louisville Rolling Mill Iron, for large Bolts for Railroad Bridges in Indiana. The Iron for this work must be of very superior quality, uniting great strength and tenacity. All the Iron we received of the Louisville Rolling Mill was of that character, and gave great satisfaction. THATCHER, BURT & CO., Railroad Bridge Contractors. FULTON FOUNDRY. GLOVER, GAULT & CO. (SUCCESSORS TO INMAN, GAULT & CO.) MANUFACTURERS OF STEAM ENGINES For Marine and Land purposes, and MACHINE CASTINGS OR ALL DESCRIPTIONS, Main street, near corner of Ninth.