A CEMENT RESERVOIR.

The annexed figures represent, on a scale of 1 to 50, a plan and

vertical section of a reservoir of beton, 11 cubic meters in capacity,

designed for the storage of drinking water and for collecting the

overflow of a canal. The volume of beton employed in its construction

was 0.9 cubic meter per cubic meter of water to be stored. The inner

walls were covered with a layer of cement to insure of tightness.

[Illustration: A CEMENT RESERVOIR.]

T is the inlet pipe, with a diameter of 0.08 m.

T' is the distributing pipe, and T" is the waste pipe.--_Annales des

Travaux Publics_.

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Scientific American Supplement, No. 388, June 9, 1883 · 第 36 / 79 题