Evening Republican, Volume 15, Number 234, Rensselaer, Jasper County, 4 October 1911 — Modern “Dew Ponds.” [ARTICLE]

Modern “Dew Ponds.”

The ancient “dew ponds” of England have their modern counterparts on the rock of Gibraltar, where drinking water is obtained by the condensation of the abundant flew in especially prepared basins. The primitive process consists tn making a hollow in the ground and filling the bottom with dry straw, over which is placed a lay-, er of clay. On a clear night the,clay cools very rapidly, and the dew is condensed Into water in the basin. The pond is by putting a layer of asphalt or portland cement under the straw. At Gibrattar the present practice is to use wood Instead of straw and sheet iron instead of clay.