The following report is meant to evaluate whether the information on oocyte size improves ability to predict ovary weight from body weight, and we evaluate the cost-effectiveness of different sample sizes for characterizing egg size.

This report is based on the findings from an observational study on the Hawaiian monk seal on Laysan Island in the Northwestern Hawaiian Islands during April 8 to July 20 1987 and March 30 to July 16 1989. The data collected focuses on haul-out, behavior, and reproductive patterns; population structure; and factors affecting survival.

The following report analyzes the data recorded from the observational studies on the Hawaiian monk seal at French Frigate Shoals in the Hawaiian Islands National Wildlife Refuse during 1990 and 1991. The data recorded focuses on reproduction rates, necropsies, deaths, entanglement, and survival methods.

This report analyzes the observational studies of the Hawaiian monk seal on Laysan Island in the Northwestern Hawaiian Islands during April 10 to August 9 and October 14 to November 4 1990. The data collected focuses on haul-out, behavior, and reproductive patterns; population structure; and factors affecting survival.

Objective: This research plan identifies a coordinated series of research activities to estimate mortality and physiological impacts on marine turtles hooked and/or entangled by Hawaii's domestic longline fishery.

This report analyzes data collected on a study of age-length and somatic growth interrelationships for the Hawaiian pink snapper, or "opakapaka," Pristipomoides filamentosus.

Partial abstract: Frequent dredging requirements and scouring at the foundation of Ocean City Inlet's south jetty resulted in a study to determine the source of the shoaling and scouring. The study concluded that sand was being transported northward along Assateague Island, through and over the south jetty, and deposited inside the inlet. The sand was then transported north by ebb currents where it encroached on the Federal navigation channel. A rehabilitation program was initiated to create a littoral barrier to eliminate the shoaling problem and to repair the scour hold. Three headland breakwaters were constructed to stabilize Northern Assateague Island. The site was selected as part of the Monitoring Completed Coastal Projects (MCCP) Program to determine how well the rehabilitation project accomplished its design purpose.

This report talks about some of the current domestic and international research activities of the Office of Mineral Resources, Geological Division of the USGS.

Abstract: "This report presents a U.S. Bureau of Mines study that incorporates coal mining factors, cola recovery factors, and economic factors into the definition of an economically recoverable coal resource. The relationship between these factors to the Energy Information Administration's estimate of U.S. coal resources--the "Demonstrated Reserve Base"--is discussed. The Boltsfork 7 1/2-minute quadrangle in eastern Kentucky was selected as the stud area. Results indicate that of the original 280.2 M tons of resource in the quadrangle, only 99.8 M tons (35.6%) is recoverable at a mining cost of $25 per ton or less" (p. 1).

The following report presents detailed lethologic and conodont biostratigraphic data from four measured sections in the lower part of the Oquirrh Group in the Oquirrh Mountains of Utah and the Deep Creek and Samaria Mountains of Idaho.

A report about the Crummies Member of the Breathitt Formation which is a marine unit archaically called the Cannelton Limestone located in the Kanawha River valley of West Virginia.

From abstract: The report for document C is about the tectonic trends of the northern part of the Paradox Basin of southeastern Utah and southwestern Colorado, as derived from Landsat multispectral scanner imaging and geophysical and geologic mapping. The report for document D is about an uncontrolled X-band airborn radar-image mosaic that was compiled for the western three-fifths of the Moab 1° x 2° quadrangle of southeastern Utah and southwestern Colorado.

The following report presents geochemical data results of 34 elements in 951 samples of altered and mineralized rock samples from mines, prospects, dumps, and drillholes in the Tonopah quadrangle, Nevada.

The following report documents results taken from a reconnaissance geochemical survey that was conducted in the northwest-trending Alexander terrane, Gravina-Nutzotin overlap assemblage, and Taku terrane in southeast Alaska in the Craig and Dixon Entrance quadrangles and the western edges of the Ketchikan and Prince Rupert quadrangles.

A report about the geochemical and mineralogic study of the U.S. Virgin Islands indicates the presence of a previously undocumented Sn-Pb and precious metals.

From abstract: This report contains complete Bouguer anomaly, isostatic residual anomaly, and horizontal gradient anomaly gravity maps of the Powder River Basin and surrounding areas in southeastern Montana, northeastern Wyoming, and western South Dakota were compiled using gravity data from 21,528 stations. A total-intensity anomaly aeromagnetic map with 3 mile spaced east-west flight-lines is also presented. Also included is an analysis of these maps and data, focusing on gravity and aeromagnetic studies.

A report about the Marysvale volcanic field that lies at the east end of the Pioche-Marysvale igneous belt.

From introduction: This report describes the Delhi Pike area, which is an area of landsliding we believe to be representative of landslides in colluvium throughout the Cincinnati metropolitan area. The area has been the focus of several detailed studies reported in other chapters in this bulletin. The purpose of the report is to describe the physical setting and movement styles of the landslides and, thus, to provide a context for the more narrowly focused chapters that follow.

A report about benthic foraminiferal faunas in 18 borholes from the eastern Beaufort Sea shelf.

From introduction: "This report illustrates a method for delimiting prospective placer districts in the United States by use of National Uranium Resource Evaluation (NURE) Hydrogeochemical Stream Sediment Reconnaissance (HSSR) geochemical data and adjunct airborne spectral gamma-ray radiation data."

A report about dunes which are vegetated, inactive, and are made of quartz.

A report about metamorphic rocks exposed near Juneau, Alaska. The belt they are in had a complex history of deformation, metamorphism, and plutonism.

A report about lithologic, paleontologic, and paleomagnetic analyses of sediment cores from Northwind Ridge in the western Canada Basin which provides a stratigraphic framework for interpreting the upper Quaternary paleoceanographic records of the western Arctic Ocean.

A report about rockfalls and debris avalanches on the southern approach to Smuggles Notch in Vermont.