d States exceeded this and steel of all manufactured descrip- tions, and with the output of pig iron during 1898. in 1899 approximating 40,000,000 tons, To the pioneers of the iron trade of and that of steel 28,000,000 tons, we the world this is, in some respects, hu- have an increase of about 40… … PHOTO BY TULLEr & CO , SHEFFIELD SIEMENS-MARTIN FURNACES7AT THE NORFOLK WORKS OF MESSRS. THOS. FIRTH & SONS, LTD., SHEFFIELD
Engineering
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