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ARTESIAN See also:WELLS , the name properly applied to See also:water-springs rising above the See also:surface of the ground by natural hydro-static pressure, on See also:boring a small hole down through a See also:series of strata to a water-carrying See also:bed enclosed between two impervious layers ; the name is, however, sometimes loosely applied to any deep well, even when the water is obtained by pumping . In See also:Europe this mode of well-boring was first practisedin the See also:French See also:province of See also:Artois, whence the name of Artesian is derived . At See also:Aire, in that province, there is a well from which the water has continued steadily to flow to a height of 11 feet above the ground for more than a See also:century; and there is, within the old Carthusian See also:convent at Lillers, another which See also:dates from the 12th century, and which still flows . But unmistakable traces of much more See also:ancient bored springs appear in See also:Lombardy, in See also:Asia See also:Minor, in See also:Persia, in See also:China, in See also:Egypt, in See also:Algeria, and even in the See also:great See also:desert of See also:Sahara . |
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