The chemical examination of water, sewage, foods, and other substances : by J. E. Purvis and T. R. Hodgson.

Simple methods of testing sewage effluents : for works managers, surveyors, &c / by George Thudichum.

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Sewage - Analysis

Works from the collections

The chemical examination of water, sewage, foods, and other substances : by J. E. Purvis and T. R. Hodgson.

Simple methods of testing sewage effluents : for works managers, surveyors, &c / by George Thudichum.