Photograph from Bethlehem Steel Co. 



FOURTEEN-INCH GUNS AND TURRETS UNDER CONSTRUCTION 



Such big guns as these can send a projectile weighing two-thirds of a ton flying through 

 space at an initial velocity of 20 miles a minute. They require some 600 pounds of powder 

 for each shot, and give the projectile a twist that makes it whirl as it flies — a complete turn 

 for every 30 feet it travels. 



months, and so the red ore pile is seen 

 everywhere at lake ports and furnace 

 plants. Many of the furnace plants are 

 right alongside the unloading docks and 

 save the cost of railroad haul. But there 

 are still millions upon millions of tons of 

 ore that must take a second ride by rail 

 before it can reach the hour of its trans- 

 formation into pig iron. 



Having followed the ore from the mine 

 to the furnace stock pile, omitting any 

 account of underground mining and mill- 

 ing because of their relatively small con- 



tribution to the total ore production, and 

 also omitting the story of the concentra- 

 tion of lean ores, let us now watch the 

 assembling of the other materials that go 

 into the furnace. 



MAKING COKE FOR BEAST FURNACES 



The coal comes in the main from Penn- 

 sylvania and West Virginia. A famous 

 coal region that furnishes coking coal is 

 the Connellsville district. Let us go to 

 Standard Mine No. 1 there and have a 

 look. It sends up 50 tons of coal every 



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