Journal of the Association of Engineering Societies (1881)
Association of Engineering Societies (U.S.) · New York, [etc.] Board of Managers · leaf 790
ASSOCIATION OF ENGINEERING SOCIETIES. 712 … Fjg. 14. ing to experiment with a set of cradles of boards and plank, Fig. 14. Thus arranged, the -pipes could be given perfect alignment, and the joints could be made in advance of the work of trenching. If neat Portland were used, they could be removed after one and a half hours ; and if of…
Engineering
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