1914-1917, annual; 1919- biennial. None issued for 1920, 1922.; 638-C. Outline of methods for estimating ground-water supplies, by O.E. Meinzer.--679-A. The Thiem method for determining permeability of water-bearing materials and its application to the determination of specific yield; results of investigations in the Platte River Valley, Nebraska, by L.K. Wenzel.--B. Thermal springs in the United States, by N.D. Stearns, H.T. Stearns, and G.A. Waring.--836-D. A summary of ground-water conditions and resources utilization of water from wells and springs, methods of scientific investigation, and literature relating to the subject.--1669-Z. Selected techniques in water resources investigations, compiled by G.N. Mesnier and K.T. Iseri.--1779-Z. Selected bibliography on laboratory and field methods in ground-water hydrology, by A.I. Johnson.