mately half the genuine wrought iron pipe today manu- factured in the United States. In the early years bars, sheets, etc., as well as pipe, were made. Now the entire output of the company’s puddle mills is required in the manufacture of Byers Pipe, couplings and nipples. Surplus of pig iron, made primarily for supplying the company’s puddle furnaces, is sold to the foundries within shipping dis- tance of the blast furnace at Girard, Ohio. Typical of the unvarying policy which the Byers Com- pany has pursued in maintaining the highest standards of quality, and in building into its pipe the longest possible life, it is noteworthy that its rolled products have always been made of unadulterated wrought iron with no admixture of scrap of any nature whatsoever. In this connection it is interesting to examine the picture of the old puddle mill, shown on the opposite page. It stands on the site of the original Byers plant, and the sheets which form the siding and roofing were made in Byers own works in 1881. With- out paint, without galvanizing, and practically without re- pairs, these wrought iron sheets have served for 45 years in the smoke and sulphur laden atmosphere of the industrial plants and railroad yards of Pittsburgh’s South Side. Their condition today makes it appear that these old sheets will last for another generation. Many records of old Byers Pipe in buildings that have been dismantled also show un- interrupted service for forty, fifty and more years—all be- speaking the exceptional life of old-fashioned wrought iron. While higher in first cost than modern steel pipe, the lasting qualities of Byers Genuine Wrought Iron Pipe make it particularly adapted for permanent installation where ultimate cost per year of service is the dominant considera- tion. It finds its chief uses in the plumbing, heating and other pipe systems of large buildings; in railway service, particularly for locomotive piping and for airbrake lines; in the oil and gas fields, both in the wells and long distance pipe lines; for water and gas service lines, and other under- ground installations; in industrial plants for handling process liquids, hot water, steam returns and in other similar services where corrosion is a factor to be reckoned with.