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Scientific American, Vol. 24, No. 20 (May 1871) (1871)

leaf 1

An illustration from Scientific American, Vol. 24, No. 20 (May 1871), 1871, leaf 1
e street. line of columns, seventy feet apart, in such a street, even county. It has been denied by some engineers that columns can be though thronged with travel, would not, it is thought, be a With the system fully carried out, and the three lines estab- set so as to sustain such a railway; the… … both tracks, as much as Lhough it retained the original form Britain), in his examination upon the cause of one of the ac- part of the city, as, for instance, Bowery, Center, Broad, and indicated by the lines, A. cidents referred to, said: other streets, where, Mr. Hannahs maintains, a single row…

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