Publisher's Synopsis
Excerpt from The Builder, 1867, Vol. 25: An Illustrated Weekly Magazine, for the Architect, Engineer, Archaeologist, Constructor, and Art-Lover
The quantity of water passing through the great sewer is, as may be supposed, extremely variable; it is generally 1 metre per second, giving 4 cubic metres or 140 cubic feet per second. This velocity, according to the usual hydraulic data, should roll stones the size of an egg, 'but the viscous nature of those sewage deposits -street-sweepings containing much organic mat ter-prevents the water from carrying cd' any thing that is not mechanically stirred up into it.
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