Letter opinion 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 Ben Shepperd, regarding a legal question submitted for clarification; Letter Opinion No. MS-133

Monthly magazine discussing natural resources, parks, hunting and fishing, and other information related to the outdoors in Texas.

Report presenting an evaluation of an aircraft radio altimeter for use in a method of airspeed calibration differing from the radar-photothedolite method of a previous study only in that the geometric altitude is obtained from an aircraft radio altimeter. The accuracy and airspeed calibrations for the two methods were found to be similar.

Report presenting an experimental investigation to define the downwash field and vortex-sheet shape behind a large-scale wing-fuselage combination with a 63 degree sweptback wing of aspect ratio 3.5. At positive angles of attack, the vortex sheet assumed a shape which initially bowed upward but flatten out downstream before the rolling-up process had occurred to an appreciable degree. Results regarding downwash data, shape and location of the vortex sheet, path of the vortex core, and comparison of theories with experimental results are provided.

Describes the characteristics of the different breeds of chicken that are used for the production of meat and eggs.

Note presenting an investigation of the importance of triple collisions in the thermal relaxation process of gaseous mixtures. Results of the experiments have shown that the thermal relaxation times of the gas mixtures studied can be very well explained on the basis of binary collisions alone and that triple collisions do not play a discernible part in the excitation of molecular vibrations.

The following report presents the results of various investigations on the study of the durability of concrete exposed to natural weathering. The report is divided into two parts: first, the natural weathering exposure stations and test procedures are analyzed, then follows the analysis of the programs of investigations.

Abstract: Reconnaissance mapping in the Ruby Quadrangle, Arizona, indicates the existence of a complex assemblage of volcanic rocks and associated sediments, divisible into a younger and older series.

The following are some of the equipment currently used in the Health Physics counting rooms at the Laboratory: scintillation counters, end window beta-gamma counters, precipitcon beta-gamma counter, autoscaler beta-gamma counter, and continuous flow proportional counter. This technical report describes the equipment, supporting equipment, procedures, and sample preparation in use at the Laboratory.

A preliminary evaluation of the hazards associated with a 20-Mw boiling reactor for the purpose of determining site requirements is presented. The Boiling Experimental Reactor design, safety features, and performance are given and the surroundings of the site at Argonne National Laboratory are described. (T.R.H.)

Experiments performed by the Laboratory with the Borax Reactor at the National Reactor Testing Station have demonstrated that a boiling reactor possesses inherent safety characteristics which have not previously been included in the estimation of reactor hazards. Other operating characteristics of Borax were also sufficiently attractive to justify the development of boiling reactors for package power and central station power plant applications. Accordingly, a proposal was made to the Atomic Energy Commission that Argonne design, construct and operate a pilot-scale boiling reactor (BER) as part of the Commission's five year program for development of power reactors. Tentative approval for this project has been granted. The primary objective of the BER is to establish the feasibility of operating a boiling reactor in conjunction with a turbine generator on a scale which can be extrapolated to large sizes. A preliminary evaluation of hazards is hereby submitted for the purpose of determining site requirements for a 20 mw reactor of this type. Because the construction of the reactor would be expedited and its usefulness as an operating experiment greatly enhanced, it is suggested that the reactor should be constructed at the DuPage site of the Laboratory. If the inherent features of safety of …

From Introduction: "The purpose of this report is to present the results of the analysis and to compare them with the experimental results of the transonic turbine."

Report describing a supersonic-compressor rotor designed as an impulse-type with some deceleration along the tip and with turning to the axial direction. Results regarding the overall performance, inlet flow distribution, results of rotor-outlet surveys, blade element performance at 90 percent design speed, and blade element performance at open throttle are provided.

Results are presented of wind-tunnel investigations at Mach numbers of 0.60 to 0.94 and angles of attack of -2 degrees to about 24 degrees to determine the lateral control characteristics of spoilers with various wing chord-wise and spanwise locations and spoiler spans and deflections on thin 60 degree delta wing of NACA 65a003 airfoil section parallel to free stream.

Report presenting a low-speed investigation in the stability tunnel to determine and improve, if possible, the directional stability characteristics of two tandem helicopter fuselages, one representing a helicopter with overlapping rotors and the other a helicopter with nonoverlapping rotors. Results regarding the presentation of data, directional stability of overlap-type fuselage, and directional stability of nonoverlap-type fuselage are provided.

A method for determining dissolver solution concentration as a function of length of column traversed for trickletype continuous dissolvers has been developed. An illustrative example is worked out for the mercury-catalyzed nitric acid dissolution of U-Al cast alloy slugs. The method employs a graphical integration of simple functions of dissolution rates and acid concentrations. These rates and concentrations are easily obtained from batch experiments made over the important ranges of concentration. (auth)

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From introduction: The present paper is concerned with fisherman-expenditures, fisherman-use, and yield of the fisheries involved, although some data on other aspects of the fishery were obtained.

Note presenting tables and figures of a standard atmosphere based on the Manual of the ICAO Standard Atmosphere. Detailed tables of pressures and densities are given for altitudes up to 20,000 meters and to 65,000 feet.

Progress is reported on the following investigations: separation of Nb and Ta by solvent extraction; separation of Ti and Nb with TBP, and of Hf from Zr with methyl ethyl ketone; preparation of HfF/sub 4/, CeF/sub 3/, LaF/sub 3/, ThCl/ sub 4/, and V chlorides; preparation of Ce, La, V, Nb, anf Hf; phase studies of U- -Zr, U--Ag, U--Nb, V--Al, V--Ta, Th--Mg, Zr - Zn, and Ta alloys; corrosion of high-melting metals and alloys by liquid U-Cr and Mg--Th alloys; casting U into U- Zr alloy cans; coating and electroplating of U; reactions of U with Al-Si alloys at high temperatures; corrosion of U - Zr--Nb alloys in water; crystal structure of sodium tungsten bronze; physical properties of Dy; and phase studies of CaO- CaF/sub 2/ systems. (C.W.H.)

Economic study covering several classes of cycles of reactor steam power plants.