SIMPKIN, MARSHALL, & CO., STATIONERS' HALL COURT; KENT & CO., PATERNOSTER ROW; AND THE PRINCIPAL NAUTICAL PUBLISHERS AT ALL SEAPORTS. LONDON PRINTED BY PEWTRESS & Co., Steam Printing Works, 15, GREAT QUEEN STREET, LINCOLN'S INN FIELDS, W.C THE NAUTICAL MAGAZINE FORTY-EIGHTH YEAR. VOLUME XLVIII.-No. I. JANUARY, 1879. STEEL FOR SHIPBUILDING. (Continued from page 968, Vol. 47.) HE paper read at the meeting of the "Iron and Steel Institute," by Mr. Daniel Adamson, on the mechanical and other properties of iron and mild steel is fully as interesting as that by Professor Akerman, to which we have already referred. Mr. Adamson has conducted a large series of experiments on iron of various qualities, on mild steels, and on steel more highly carbonised, and his experiments afford much information as to the behaviour of the several metals when broken by the ordinary tensile test, when exposed to concussive strains, and when subjected to corrosion in a bath of diluted sulphuric acid, the experiments in each case being of especial value from the fact that a statement of the exact chemical composition of each plate is given. He has also experimented upon the mechanical properties of various kinds of the metal when subjected to a temperature of about 600° Fahr. In the first series of experiments a cast iron anvil block was used having a hole gouged out of its upper surface in the form of a segment of a sphere ten inches in diameter, and four inches deep. The plate to be experimented upon was laid upon the anvil, and VOL. XLVIII. B |