Publications

As a result of increased interest in ground‐water conditions in recent years, records of water‐levels in wells are now being collected in many places in the United States for the primary purpose of determining the relation of precipitation and other natural factors to fluctuations in water‐level. In the past, records of ground‐water levels have been collected chiefly in connection with intensive i

When the program for the meeting of the Section of Hydrology a year ago was in preparation, it was suggested that a symposium be presented on the subject of the effects of the recent drought on ground‐water levels. The proposal was not carried out largely because at that time not enough accurate information on the subject was yet available. It has, however, seemed that this year a worth‐while grou

No abstract available.

The measurement of the loads of suspended matter carried past 34 gaging‐stations located on streams in eight regional projects of the Soil Conservation Service has required greater precision in the measurement of discharge and a more intensive program for the collection of samples of suspended matter than has been found necessary by the Geological Survey in making similar measurements on the large

Evidence obtained from thin sections, polished sections, and chemical analyses of granodiorite porphyries from the Ouray District of Colorado show that during crystallization of the granodiorite magma a number of shifts occurred in the equilibrium between the oxides of iron. These changes are reflected in processes of mineralization associated with the magma. The geologic setting of the igneous bo

Long‐time continuous records of the fluctuations of ground‐water levels have been obtained at relatively few locations in the United States. Among the few available records for Utah that extend continuously over a period of a year or more are those made in the Jordan River and Ogden valleys by the United States Geological Survey in cooperation with Salt Lake City and Ogden. A few of the records of

The movement of water through formations having capillary openings is generally laminar and obeys Darcy's law, at least down to very low gradients. About 1000 samples tested in the laboratory of the United States Geological Survey have coefficients of permeability ranging from 0.001 to 90,000, indicating probable velocities ranging from a fraction of a foot to a few miles in a year. The Thiem fiel

W J McGee was a scientist of broad‐interests, large vision, and unbounded enthusiasm for science and its application to human welfare. He was one of the earliest champions of the conservation of our natural resources. He rose from humble origin, by rigorous self‐discipline, to outstanding national leadership. He was absorbed by zeal for service to mankind. His life had a heroic quality, as is well

As early at 1851 the need for information as to the position of the water‐table was recognized by workers on Long Island. In that year water‐level measurements were made in about 32 domestic wells in the southern part of Kings and Queens counties, New York (W. J. McAlpine, Report made to the water committee of the common council of the City of Brooklyn on supplying the City with water, p. 113, Bro

The membership of this Committee was not changed during the past year.A publication has appeared during the year giving the analytical data assembled for and used as a basis for Bulletin 40 of the Department of Public Works, California. This new publication, printed as 40‐A, is entitled “Detailed analyses showing qualities of irrigation‐waters.” Analyses are given for both surface‐ and ground‐wate

The membership of the Committee remains the same as stated in the Transactions of the 15th Annual Meeting, except that Kenneth N. Phillips has taken the place of Carl P. Richards, as representative of the Mazamas, of Portland, Oregon.The Committee submits the following report on the variations of glaciers in the continental United States and Alaska for 1935 or, more precisely, for the 12‐month per

Interest in problems of ground‐water hydrology continues unabated. As proof of this statement it is only necessary to state that of 57 papers listed for presentation at the present annual meeting of the Section of Hydrology and of the Pacific Coast meeting of the Section on January 31 and February 1, 26 papers, or 45 per cent, related to some phase of ground‐water hydrology. In this connection, at