Report regarding an investigation on fishing pressure, yield, and expenditures by fishermen on the Madison river in Montana.

An apparatus is described that permits the use of highly ionizing radiations of the Berkeley 60-inch Cyclotron for radiobiological experimentation (ie., deuterons, alpha particles and carbon nuclei).

This report contains summaries of weather summaries for the United States.

This report outlines weather conditions in 300 hundred stations in the United States, Canada, and Pacific Islands in four figures: (1) Monthly General Weather Conditions, (2) Monthly Ceiling Heights, (3) Monthly Visibility, and (4) Annual Summaries of General Weather, Ceiling Heights, and Visibility; a list at the end also documents additional available information by station location.

The following quarterly report covers a period between October, November, December of 1953 to April of 1954. The document provides reports on medical and health physics, particularly on the biological studies of radiation effects, the metabolic properties of various materials, radiation chemistry, health chemistry, and health physics.

First part of an annual report describing studies conducted by researchers at Columbia University to surveyuranium mineralization in the Marysvale, Utah region: "Part I deals with field studies and mineralogical data derived from the laboratory examination of suites collected during the previous summer" (p. 5).

Introduction: During the year 1952-1953, research on the Boulder batholith program was largely devoted to basic mineralogy studies of the "siliceous reef" and, to the extent possible at that time, the "base metal" deposits.

The following report measures and analyzes the nuclear internal momentum distributions of protons in light nuclei with the 340-Mev scattered proton beam from the synchocyclotron.

Report issued by the Bureau of Mines over the operations of a coal-conversion plant in Missouri. Description of the plant with an emphasis on powdered-coal gasification is presented. This report includes tables, illustrations, and photographs.

Abstract: This report consists of four parts, the first three being descriptions of investigations compiled in the period October 1st, 1953 to April 1st, 1954; the fourth part is a summary of progress of the research based on our entire investigations completed prior to April 1st, 1954. The first part comprises a set of preliminary experiments investigating the mineral composition of the sandstones in thin sections, in an attempt to differentiate barren from ore-bearing sandstones. It appears that there are more rock-fragments and particularly more volcanic rock fragments in the ore zone (zone 4, Well C, Bull Canyon). In addition, silica cement appears to be associated with ore and carbonate cement with barren sediments. The second part details the investigation of the mudstones of the Bull Canyon Wells . A mixed layer lattice "illite" and a kaolin mineral are the most prominent in "normal" mudstones. Dye tests suggest there are differences between the clay minerals in the sandstone matrix of the ore zone and barren zone. In addition, the mudstone zones appear to differ in the response to the dye tests. The third part of the report details the bulk density determinations for cores from well B. The results confirm …

This is a photogeologic map, scale 1:24,000, Carlisle-13, in Garfield and San Juan Counties, Utah.

This is a photogeologic map, scale 1:24,000, of Carlisle-14 in San Juan County, Utah.

This is a photogeologic map, scale 1:24,000, Woodside-5, Emery County, Utah.

From abstract: The distribution of the known uranium deposits of the Colorado Plateau is being analyzed in order 1) to test for systematic relationships between that pattern and geologic factors, 2) to help guide exploration, and 3) to appraise the potential resources of the region and of each of its component areas.

"A study has been made of methods to prepare a fluid containing 1 gram of thorium per milliliter. The methods considered were solutions of thorium salts, suspensions of dry solids in water, and collodial suspensions. Thorium oxide, oxalate, and fluoride were tried in conjunction with one or more surface actants, but it was not possible to attain the required thorium concentration. Thorium hydrosol, produced by peptization of thorium hydroxide and subsequent electrodialysis, gave the necessary concentration of 1 gram per milliliter. A solution of 0.5 gram per milliliter was found to be stable to electron irradiation and did not flocculate upon shaking or standing. Selected surface actans which might be used as protective colloids were found to be unstable to electron irradiation.

This technical report summarizes the work which has been done to date on the preparation of magnesium hydride and the attempted preparation of beryllium hydride. Although pure beryllium hydride has not yet been made, the work is continuing, and this report indicates which phases are thought to be worth further work.

Report discussing the results of a 1952 reconnaissance for radioactive deposits that was conducted in selected areas of eastern Alaska.

A report regarding a reconnaissance for radioactive deposits in Eastern Alaska. Concerns work done on behalf of the Division of Raw Materials of the U.S. Atomic Energy Commission.

Report discussing the U.S. Geological Survey's investigation of radioactive material found on Mountain View mining property of the Hyder district in southeastern Alaska. No commercially valuable uranium was found in this investigation.

The following report studies samples from radioactive deposits in the Hyder district of southeastern Alaska.

A report about radioactivity reconnaissance during 1949 in the vicinities of Ketchikan, Goddard Hot Springs, Chichagof, Funter Bay, and Juneau which revealed no significant concentrations of radioactive materials.

"Continued progress has been made with the high temperature decontamination processes for irradiated uranium fuel. The fused salt treatment of molten uranium has been extended to UCl3. Plutonium and rare earths were extracted into the UCl3 phase. Direct plutonium distillation from molten irradiated uranium has been scaled up to the hundred gram scale. Solid scavenging experiments using uranium oxide, uranium carbide, and uranium nitride in contact with molten uranium have indicated fission product removal. A scaled-up investigation of the separation and recover of uranium from an SIR type ceramic fuel using the volatile fluoride process has indicated the feasibility of this separation method. The effect of irradiation on the decomposition of BrF3 has been further studies in experiments using the NAA statitron.'

Report presenting the results of one part of an investigation of the regional geology of central Florida.

Report issued by the Argonne National Laboratory discussing meteorological data collected between 1952 and 1953. Wind, temperature, pressure, and precipitation studies are presented. This report includes tables, illustrations, and a map.