Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 55
l sides to the top, which is aboutthree feet square, and is over eighty feet from theground. While we are at the top, let us make fastthe two pulleys over which our cables, or ropes, areto run. We will go down by the ladder, whichis a necessary part of the derrick, for, in boring,frequent trips to…
Children's literature
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