Publisher's Synopsis
Excerpt from Bibliographic Review and Index of Papers Relating to Underground Waters: Published by the United States Geological Survey 1870 1904
These publications, amounting to about 400 volumes and embracing about papers, were examined, many of them page by page, and brief summaries of the facts relating to underground waters were compiled. A large proportion of the references to underground waters are given in connection with geologic descriptions, and most of them are verv brief, although some are of importance. Being incidental to discussions of other subjects, many would doubtless be ordinarily overlooked, especially as in a large number of cases no reference is made to them in the indexes. There are about 600 titles in the bibliography, an average of about 21 for each year from 1880 to 1-903, but in 1904, owing to the publication of the results of the systematic work of the new division of hydrology, this number was increased to about 130.
In preparing the index two distinct classes of readers were kept in mind, the first including those who are interested in the underground water resources of special regions, and the second those interested in some particular type of ground water or in one or more of the many problems of ground-water occurrence. For the' benefit Of the first.
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