National Geographic : 1918 Nov
00 Photograph by J.Horgan, Jr. BENEATH THESE BARE ROCKS LIE THE SOLIDIFIED SUNBEAMS STORED BY PROVIDENT NATURE FOR RESOURCEFUL MAN It is only during a few centuries that coal has been used to any extent, although Roman mines inEngland point toitsuse inthose times. William Penn paid $2,500 for the anthracite region. Coal already taken out has had a tidewater value of seven billion dollars, and there are five tons in place for every one thus far removed. Ninety-eight years ago the total shipments from thisregion were only 365 tons. Now the produc tion is 9o,ooo,o000 tons per year.