The following report provides data taken of problematic situations that have led to accidental prompt-critical radiation bursts in critical assemblies laboratories, as well as a few risky instances. The purpose of this report is to prevent these mistakes from happening in the future.

From Forward: "The value of this survey of the carbonizing properties of American coals by a standard method lies in the comparability of the results on different coals. It must recognized that no standard laboratory method of carbonization, even on a large unit, can yield results that exactly duplicate those obtained in ovens and retorts. The commercial results vary with the type of oven or retort. Allowance must be made for such differences in interpreting the BM-AGA test results in terms of commercial plants."

From Introduction: "The purpose of this investigation was to separate and identify as many of the principal phenolic compounds produced by the mild hydrogenation of Pittsburgh-bed (Bruceton) coal as possible and to determine with the greatest possible accuracy the proportions in which they are present."

Report issued by the Bureau of Mines over studies on the reserves of coking coal from Allegheny County, Pennsylvania. The results of the investigations and the different coal beds sampled are presented. This report includes tables, and maps.

From Summary and Conclusions: "This report deals with upgrading to metal-lurgical standards of large reserves of high-sulfur Pittsburgh coal remaining in southwestern Pennsylvania and northern West Virginia."

Letter from Adolph W. Schmidt to Harris L. Kempner and Ruth Alma Kempner thanking them for their contribution.

Letter from Adolph W. Schmidt to Ruth Alma Kempner and Harris L. Kempner discussing the educational job of the Atlantic Union Committee, how a resolution from the Senate Foreign Relations Committee impacts it and requesting they make a contribution due to increasing budget needs.

Letter from D. W. Kempner to F. H. Riegelmeier stating he would rather have one shipment.

Letter from D. W. Kempner to Riegelmeier's, placing an order for Cibotiums, Areca palms, and a tub of Philodendron Pertusum.

Letter from D. W. Kempner to Thos. L. James discussing interest in purchasing another Converto Company trailer through James.

Letter from F. H. Reigelmeier to D. W. Kempner acknowledging his order and asking whether he would like to split the shipment or ship all of the plants when they're all ready.

Letter from Gwilym A. Price to I. H. Kempner discussing Kempner's disagreement with Westinghouse Electric Corporation's viewpoint on the control of government purchases of foreign made electrical equipment.

Letter from Harris L. Kempner to Adolph W. Schmidt enclosing a check as a contribution.

Letter from I. H. Kempner to Mr. Gwilym A. Price discussing his disapproval of Price and Westinghouse Electric Corporation's asks for the imposition of tariffs to prevent the U.S. government or citizens from buying foreign electrical products at a cheaper price while providing evidence to support his statements.

From Summary and Conclusions: "The objective of this investigation has been stated above in the Introduction. Studies were made of mining operations in the Athens Basin, Rafina and Oropos districts; the Kimi and Aliveri areas on the island of Euboea; and the Peloponnese in the vicinity of Kalamai. (See fig. 2). Mining practices at mines in these areas are summarized briefly in this report. Samples of lignite were shipped to Bureau of Mines experiment stations at Pittsburgh, Pa., and Golden, Colo., for washability and utilization studies."

Photograph of a machine at an airport in Pittsburgh, Pennsylvania or Charleston, South Carolina. The machine appears to have several tubes that extend into the sky.

Photograph of a man walking in a snowstorm at the Pittsburgh, Pennsylvania Airport. He walks away from the camera, carrying a suitcase.

From foreword: The objective of this study is to determine the practical and economic use of nuclear for the production of electric power in the Pittsburgh district.

Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "Thank the good Lord," are the fervent words of thanks uttered by 10 year old Mickey Chervenak after a Pittsburgh coroner's jury Friday cleared him of blame in the fatal shooting of his 31 year old father last week. The boy told the jury his father had beaten both him and his mother, who comforts him in the picture above, before the slaying."

Photograph used for a story in the Oklahoma Times newspaper.

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "falling down in Pittsburgh Friday has Mr. and MRs. Vernon C Eckles."

Photograph used for a newspaper owned by the Oklahoma Publishing Company.

Photograph taken for a newspaper owned by the Oklahoma Publishing Company.

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Bobby Layne Jr., Son of Pittsburgh Steelers Football Star"