The International Centre for Powder Diffraction Data has compiled an extensive powder diffraction database available on magnetic tape. The database was evaluated to determine the type and quality of the information it contains, including an analysis of d-I pairs per pattern, symmetry, quality marks, Q values, and intensities for subfiles of known crystal class. In addition, nine functions were evaluated to assess pattern quality for cubic and triclinic data. This document presents a minimum amount of data analysis, but concentrates on the distribution and statistics. It also describes how these data were obtained.

Design and field execution of seismic experiments are described that recorded the characteristics of seismic signals from single and multiple explosions conducted at the Nevada Test Site in Yucca Flat, Nevada. Most of the data were obtained from small-scale underground explosions (total yields ranged from a fraction of a pound to 100 lb of explosives) that were designed to permit characterization of seismic signals as a function of explosive-source configuration. Other data were from explosions conducted in the area by others: two underground nuclear detonations with yields below 40 kt each and several surface explosions whose yields ranged from 700 lb to 100 tons. The project included a comprehensive study of the Yucca lake bed, close-range recording of seismic signals from explosions, and excavation of cavities generated by small-scale high-explosive charges. 60 figures, 14 tables.

From abstract: Results of a reconnaissance geochemical survey of the Iron Mountain Quadrangle, Michigan; Wisconsin are reported. Field and laboratory data are presented for 479 groundwater samples, 369 stream sediment samples, and 389 stream water samples. Statistical and areal distributions of uranium and other possible uranium-related variables are displayed. A generalized geologic map of the survey area is provided, and pertinent geologic factors which may be of significance in evaluating the potential for uranium mineralization are briefly discussed.

From abstract: Results of a reconnaissance geochemical survey of the Rice Lake Quadrangle, Wisconsin are reported. Field and laboratory data are presented for 518 groundwater samples, 540 stream sediment samples, and 533 stream water samples.

From abstract: Results of a reconnaissance geochemical survey of the San Antonio Quadrangle , Texas are reported. Field and laboratory data are presented for 781 groundwater samples 541 stream sediment samples, and 331 stream water samples.

Installation of a sulfuric acid corrosion test facility has been completed and is described. The facility is to be used for testing of potential materials for containment and heat exchange of a sulfuric acid vaporizer at temperatures up to 725/sup 0/K and boiling pressures of >20 atm (2 MPa). Materials that are ready for test are Duriron, Durichlor 51, single crystal Si, hot-pressed Si/sub 3/N/sub 4/ (Noralide NC-132), and hot-pressed SiC (Crystar HD-435), and tests are expected to get underway in April pending Hazards Control approval.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, John L. Hill, regarding a legal question submitted for clarification; Authority of Credit Union Commissioner to refuse application for charter.