Rudiments of the art of building : represented in five sections [...] for the use of architects, builders, draghtsmen, machinists, engineers and mechanics (1853)
Bullock, John · New York : Stringer & Townsend · leaf 29
required, the space between them being filled in with well-rammed fuddkj so as to form a solid water-tight mass.(See fig 6.) The great difficulties in the construction of a Fig. 6. … cofferdam are—1st, to keep it water-tight ; and, 2nd, tosupport the sides against the pressure of the water outside,which in tidal waters is sometimes so great as to render itnecessary to allow a dam to fill to prevent its being crushed. ART OF BUILDING. 25 24. In order to save timber, and to avoid…
Building
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