Technical paper issued by the Bureau of Mines over the development of gas masks designed for fighting fires. The characteristics of the different types of masks in development are presented. This paper includes tables, illustrations, and photographs.

Report issued by the U.S. Bureau of Mines on the methods and results of water injection in Illinois oil sands. The operations and properties of the oil sands are presented. This report includes tables, graphs, maps, and illustrations.

From Introduction: "The present report has been prepared to discuss the indications obtained from the University of Chicago turbulence indicator in relation to simultaneous measurement of atmospheric gustiness made by the NACA, which are summarized herein."

Report discussing the radioactivity of channel samples of the commercially important coal beds in the Caseyville, Tradewater, Carbondale, and McLeansboro formations of Pennsylvanian age, as well as samples of the black, hard, sheety, roof shales of several coal beds in southern and central Illinois.

Report documenting the measuring of strontium-90 levels contained in the bones of children and adults of various age brackets across the United States.

"This report presents results of the investigation to characterize the existing surface conditions at the Sheffield Low-Level Waste Disposal Facility Sheffield Illinois."

From introduction: This report contains a general description of the hydrology of the project site, summaries of the data collected during 1971 to 1978, and discusses some of the factors affecting the hydrology of the site. This information and the water-level contour map (Fuentes and Patterson, 1979) will be helpful in designing an effective ground-water monitoring program and will provide baseline hydrologic information from which future changes can be detected.