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Scientific American, Vol. 22, No. 11 (1870) (1870)
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spans tion of the pier was about $400. way managers as to the meaning of economy as relating to of lattice girders supported by masonry abutments and by The viaduct was constructed under the direction of M. Dé- the roads they operate. By far the greater number apparent- glin, engineer-in-chief of… … est in the long run ; about an eighth of an that that policy which inch. At the same © 1870 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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