Journal of the Association of Engineering Societies (1881)
Association of Engineering Societies (U.S.) · New York, [etc.] Board of Managers · leaf 260
sandals, not to make indentations in the sand surface. The average composition of the sand used may be seen in the fol- lowing table : Results of Analyses of Sands Used in the Sand Filters. Uniformity Parts bv Weight. Coefficient. Effective Size / icyi Finer\ Size ifxxi finer Source of Sample.… … Fig. 4. Sand Filter, Method of Scraping. Apparatus. The effluent pipes were brought, side by side, into a small vault in the niter building, in which were placed the neces- sary devices for regulating and registering the quantity of water filtered. Meters were rendered unreliable by the amount of…
Engineering
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