. American engineer and railroad journal . or in azimuth was 12 ft. in. at a dis-tance of miles, and the closing error was 8 ft. 2 error in altitude in closing, after running the , without checking on any intermediate benches, ft., with a maximum of ft. at the 27th mile. The Vol. LXVl, No. 12.]: ENGINEERING JOURNAL. 553 cost of the triangulation, topography, leveling and officework, covering all expenses for 815 working clays, amount-ed to about $35,000, at a cost of Si5 per acre, or per lot. The work was carried on by four en-gineers, with assis
. American engineer and railroad journal . or in azimuth was 12 ft. in. at a dis-tance of miles, and the closing error was 8 ft. 2 error in altitude in closing, after running the , without checking on any intermediate benches, ft., with a maximum of ft. at the 27th mile. The Vol. LXVl, No. 12.]: ENGINEERING JOURNAL. 553 cost of the triangulation, topography, leveling and officework, covering all expenses for 815 working clays, amount-ed to about $35,000, at a cost of Si5 per acre, or per lot. The work was carried on by four en-gineers, with assistants, but only one party was in thetield at a time, the others being busy in the office. AN OLD REVETMENT WALL. (P»lier by W. J. Sproule. From the TranLn/wtts of ihc C; of Civil Eiigiiieers.) The old revetment wall along the city front in Montreal harbor is a very instructive example for civil engineers more instructive than modern examples of massive masonrywhich show no signs of failure, and in which there may be. Built 1840-41. AN OLD REVETMENT WALL. Br W J SPROULE Ml £
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
