Deals principally with results of hydrologic investigations in the Chergui closed basin in the high plains region of northwest Algeria. The ground water which occurs immediately below the surface is highly saline, but the presence of several freshwater springs suggested the existence of artesian conditions at depth, subsequently confirmed by borings, in the permeable limestones and sandstones underlying the basin. Large quantities of fresh water, which at present percolate to the surface and are lost through saline contamination and evaporation, are available at depths from 150 to 300 feet.

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