
The SciencesNovember 1, 1950
Ground Water
The subterranean rocks of the U. S. hold more water than all its surface reservoirs. Yet the present demand on this mighty store raises the question of whether it is being permanently depleted

Ground Water
The subterranean rocks of the U. S. hold more water than all its surface reservoirs. Yet the present demand on this mighty store raises the question of whether it is being permanently depleted