National Geographic : 1932 May
Photograph by Jacob Gayer TO-DAY'S MAGICIANS IN METAL PERFORM MORE WONDERS THAN ALCHEMISTSOF OLD EVER DREAMED OF Martins Ferry is only one Ohio town where iron ore begins its transmutation in blast furnaces into pigiron and then into steel. Cincinnati excepted, every great city of the State and many small ones owe their importance chiefly to this industry. Activity centers inareas inand around Cleveland and Youngstown and extends, in lesser degree, part way down the Ohio. The State's first six barrels of orefrom Lake Superior mines were considered worthless and were sold for their freight; to-day these mines are the chief dependence of its greatest industry.