Report issued by the U.S. Bureau of Mines on the study of contamination of cores obtained with conventional core barrels. The effect of the oil-based drilling fluid and analysis of the cores are presented. The report includes tables, graphs, and illustrations.

Photograph used for a story in the Oklahoma Times newspaper. Caption: "ESTABLISHING A HOME temporarily in Denver will be Dr. and Mrs. John D. Glismann and their children, John Phillip, 3; Laura Ann, 22 months; Linda Gale, 7, and Diana Rae Glismann, 5. They have been the guests of Dr. glismann's parents, Dr. and Mrs. M. B. Glismann, 729 NW 17, following their return from Kingston, Jamaica, where they lived while Dr. Glismann was administrator of public health in the Caribbean area for the Pan-American Sanitary bureau."

Postcard of the Pueblo Golf and Country Club in Pueblo, Colorado. A printed note below the picture says "Pueblo, a Thriving City With a Lasting Prosperity." A handwritten note on the back of the postcard, addressed to Mrs. Edward Bartley and Miss Lou Rayburn says, "I met Mr. and Mrs. Chapman at a big party given in their honor. They asked to be remembered to you. I have had so many lonely mt. trips - it is beautiful here and so cool. Lois Meade."

From introduction: The Big Boulder prospect is in SE 1/4 sec. 36, T.7N., R.,72W., in Tarimer County, Colorado. The prospect has been opened by four irregular trenches and shallow cuts, and a 10-foot discovery shaft. Hanley 1/4 states that 10.5 tons of beryl were produced from the Big Boulder prospect in 1936, and about 600 pounds in 1941.

From introduction: The results of Geological Survey exploration at Blue Mesa are summarized in this preliminary report. No additional drilling is planned.

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Msgr. Charles Buswell. . . soon, a bishop."

From introduction: This report details mineral and chemical relations in two uranium-vanadium ores of the Colorado Plateau.

From abstract: Many of the mining districts of the Colorado Front Range mineral belt contain mesothermal sulfide ores that exhibit a zonal distribution. Present data indicate that in most of the zoned districts pitchblende and/or secondary uranium minerals are most abundant in a transition zone between central areas containing predominantly pyritic gold ores and peripheral areas containing dominantly lead-zinc-silver deposits. Copper in the form of chalcopyrite is also probably more abundant in the transition zone than in adjacent zones.

This is a scale 1:24,000 photogeologic map of Mt. Peale-1 Quadrangle in Grand and San Juan Counties, Utah, and Montrose County, Colorado.

Abstract: "The relative isotopic abundance of copper has been measured in a number of minerals. Suites of samples from Michigan and the Colorado Plateau have been examined to determine if local variations due to isotopic exchange or diffusion could be found. The relative isotopic abundance of copper in specimens from a number of other places was also determined. The variations noted were small but in most cases were felt to be significant because they were larger than the experimental error (0.1 percent in the ratio). A total spread of +3 to -8 parts per mil compared to the standard was found in the specimens tested."

Report discussing uranium oxides, their thermodynamic relations, and how these relations connect to the oxidation states of uranium ores found at the Colorado Plateaus. This report provides information regarding thermodynamic properties of some compounds and ions of the U-O-H2O system, discussion and interpretation of thermodynamic properties, and a summary with conclusion.

A report about the Central City district and adjoining mining areas in the central part of the front range mineral belt which has supplied small quantities of uranium ore intermittently since the discovery of pitchblende at Central City in 1871.

Report discussing the relationship between uranium deposits and hypogene mineral zoning in the Front Range mineral belt of Colorado. This report is mostly based on work done by other geologists.

A report about a 22-square mile tract of pre-Cambrain rocks and veins containing thorium mapped at the scale of 1:6,000 located on the west flank of the Wet Mountains, Custer and Fremont Counties, northeast of Westcliffe, Colorado.

The following report analyzes channel samples from two mines (Mineral Joe No. 1 and Virgin No. 3) on the Colorado Plateau that have been studied in detail both mineralogically and chemically.

Report discussing the U.S. Geological Survey's exploration aimed at locating uranium-vanadium deposits of the Beaver Mesa area. The report provides information regarding the geology of the area, uranium-vanadium deposits, the U.S. Geological Survey's exploration, reserves, and plans/recommendations.

Report discussing a study regarding the highly radioactive Tertiary porphyries, which were found in Colorado.

Report discussing the geography and ores of the Spud patch area, which acted as a source of carnotite ore from deposits in a sandstone lens.

Report discussing a the presence of volcanic debris in sandstones containing uranium, and this volcanic debris' possible use in identifying uranium origins.

Abstract: The southwestern part of the Colorado Plateau province was studied to test results from experimental simulation of Colorado Plateau type uranium deposits and to search out additional agents influencing uranium precipitation which might be investigated experimentally.

Letter from Harris L. Kempner to Dillon Anderson asking if he would be able to get in contact with the president regarding the passing of a bill.

A preliminary reserve statement regarding Reserve Blocks H, F, and G, of the Legin Group Area, Located in San Miguel County, Colorado.

A report regarding a geological survey of the Wet Mountains, Colorado. Concerns work done on behalf of the Division of Raw Materials of the U.S. Atomic Energy Commission.

A report regarding exploration for uranium-vanadium deposits in the Beaver Mesa area, Mesa County, Colorado, and Grand County, Utah. Concerns work done on behalf of the Division of Raw Materials of the U.S. Atomic Energy Commission.