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Scientific American, Vol. 52, No. 11 (1885) (1885)
leaf 7
d 14 feet high, pounds per-mile, of common Derbyshire coal. The heaviest gradients are 1 in 119 for 3144 miles, and about and are made of about five-sixteenths inch iron, single 5 miles of other gradients of 1 in 162 to1in 177. These riveted; the heads are domed outward, and are stayed by one long… … © 1885 SCIENTIFIC AMERICAN, INCInternet Archive · Public domain (published before 1931). Free to use for anything.
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