A.L. Greenlee Leland K. Wenzel 1943 <p><span>Ground‐water has long been recognized as one of our important natural resources, but only in about the last 20 years has concentrated effort been made to place ground‐water hydrology on a quantitative basis. The quantitative approach to ground‐water work has been brought about largely through the leadership of O. E. MEINZER, Chief of the Ground‐Water Division of the Geological Survey, United States Department of the Interior, who has originated and applied many quantitative methods himself, and who has consistently fostered and encouraged this method of attack by his coworkers. That this effort has been ably directed and especially fruitful Is shown by the vast number of important ground‐water problems relating to the water‐supplies for war activities that have been worked out by means of quantitative methods in the last few years.</span></p> application/pdf 10.1029/TR024i002p00547 en American Geophysical Union A method for determining transmissibility‐ and storage‐coefficients by tests of multiple well‐systems article