Abstract: The findings of a problem-oriented, river-system investigation of the water quality and streamflow characteristics of the Raritan River, N.J. are described. Information on streamflow duration, time-of-travel measurements, and analyses of chemical, biochemical and physical-water quality are summarized and used to define relations existing between water quality, streamflow, geology, and environmental development in the basin's hydrologic system. Stream quality, particularly in the lower urban areas of the basin, is shown to be deteriorating with time at most of the sampling sites reported. For example, average dissolved-oxygen concentration is reported to be undersaturated at all sampling sites and is decreasing with time at most sites. Biochemical-oxygen demand is increasing at most sites, as are the dissolved-solids content.

The following document is a collection of reports on the studies of the early Mesozoic basins of the Eastern United States. The reports are divided into four sections: reports that study the sedimentary rocks of the basins, studies of related to Jurassic igneous rocks, studies related to the geophysics, structure, and tectonics of the basins, and studies related to the mineral resources.

Abstract: The High Plains of the eastern New Mexico region are recognized as an abundant and varied source of natural resources. This bibliography of over 1,900 references concerned with geology, hydrology, chemistry, and geography has been compiled to assist physical science researchers in their study of this region.

Two part report on the potential applications of nuclear explosives in development and management of water resources.

From outline: This paper, after discussing general principles connected with the study and description of the Tertiary or Cenozoic rocks and fossils contained in them, takes up the Neocene deposits of the United States in particular. A chapter is devoted to a summary of what is known in regard to the Neocene of the eastern coast of the United States, each State in geographical order being separately considered, beginning at the north.

A report which provides information about American phosphate of lime deposits.

Report summarizing results of research conducted by the U.S. Geological Survey during fiscal year 1965. It provides an overview of the economic and scientific work of the organization.

A bibliography which includes geologic publications printed in North America and geologic publications about North America for the year 1890.

From Forward: "The first edition of the record setting forth the history of the boundaries of the United States and the several States and Territories was prepared by Henry Gannett, assisted by Franklin G. Butterfield, and was published as Bulletin 13 of the United States Geological Survey in 1885. The present bulletin is a revision and enlargement of Bulletin 226 and includes additional matter incidentally connected with boundaries."

From introduction: This report is based on a hasty reconnaissance made during the summer of 1910 and on several explorations made by the writer in the years 1900 to 1905.

From introduction: The present paper is intended as a contribution to our knowledge of a particular phase of metamorphism in eruptive rocks, i.e., that one which is dependent on the secondary development of hornblende by the paramorphism or pseudomorphism of pyroxene.

Abstract: Quantitative statistical sampling of plant debris entombed within deltaic sediments of a Holocene fluviolacustrine environment at Silwood Lake, Berkshire, demonstrates that patterns of deposition exist that can be used to reconstruct the relative spatial distributions of species within the source vegetation.

This report describes, in 7 sections, physiographic and hydraulic studies of rivers.

From letter of transmittal: The report contains 63 contributions from 37 members of the Survey who have been engaged more or less continuously throughout the year in economic work, together with brief statements by the geologists in charge of the section of metalliferous ores and the section of nonmetalliferous economic minerals, of the extent and character of the economic work being carried on in the Survey.

From introduction: "This report is a statement of progress during the six-months period from June 1 to November 30, 1955 on investigations of radioactive materials in the United States and Alaska, undertaken by the U.S. Geological Survey under the sponsorship of the U.S. Atomic Energy Commission."

From foreword: This report details geologic investigations of radioactive deposits in the United States.

A report containing a statement of progress during the six-months period from June 1 to November 30, 1955 on investigations of radioactive materials in the United States and Alaska. The program aims to understand many factors involved in uranium geology.

From introduction: The growing economic importance of the Carrville district, Trinity County, California merits notice, and it is hoped that this brief report will direct attention toward it, to the end that mining in general may be benefited.

This report was prepared with 29 specimens of rock which are described in this report.

From summary: This report details the completion of geologic maps of the Carrizo Mountains and the Capitol Reef and Red House Cliffs areas.

Semiannual report discussing progress made on the behalf of the Division of Raw Materials and Research of the U.S. Atomic Energy Commission from June 1, 1953 to November 30, 1953.

From introduction: This report details the mineral resources of Kenai Peninsula.

Annual summary describing the conditions of the mining industry in Alaska and the economic results obtained by various investigations during the year. Contributions include descriptions of general features of the geology and mineral resources as well as analyses of practical implications.

More than nine-tenths of the Upper Cretaceous rocks in northeastern Wyoming are fine-grained shales, mudstones, and calcareous marls. A comparative study of the mineralogy, chemical and mechanical composition, density and porosity, fissility, and lamination of samples of these rocks discloses several relations that throw light on the geologic history and structural deformation of the region, and perhaps on its oil and gas possibilities.