Monthly newsletter published by the 12th Armored Division Association, discussing news related to the activities of the U.S. Army unit and updates on previous members of the division.

Report documenting the suitability of Pennsylvania for plant locations to produce synthetic liquid fuels, based on raw materials, water sources, and local interest.

Final report documenting a high-sensitivity airborne radiometric and magnetic survey of the Scranton quadrangles including the survey description, specifications, data processing methods, interpretation methods, and regional geologic review.

This report presents preliminary results of ground water, stream sediment, and stream water studies in the Harrisburg quadrangle in Pennsylvania.

This report presents the results of ground water, stream water, and stream sediment reconnaissance in Pennsylvania, New Jersey, and New York.

Final report documenting a high-sensitivity airborne radiometric and magnetic survey of the Harrisburg quadrangle including the survey description, specifications, data processing methods, interpretation methods, and regional geologic review.

Abstract: Eighty-five stream sites in and near the six-county Greater Pittsburgh Region were sampled in mid-June 1971 and again in mid-October 1972. Concentrations of inorganic nitrogen, organic carbon, or phosphorus were high enough to indicate potential problems at about a quarter of the sampling sites. Temperature, dissolved oxygen, and pH values indicated a generally favorable capacity for recovery from degradation, although a number of streams east of the Allegheny and Monongahela Rivers are marginal or lacking. Regionally, sulfate is the dominant ion and was observed in concentrations of 40 milligrams per liter or more at 90 percent of the sites. Bicarbonate exceeded 100 milligrams per liter at 22 sites. A moderate to high degree of mineralization is indicated by conductance readings of more than 500 micromhos per centimeter at half of the sampling sites.

Report issued by the Bureau of Mines over investigations of coking-coal reserves of Washington County, Pennsylvania. Methods used, and measurements of coal reserves are listed. This report includes tables, and maps.

Monthly newsletter published by the 12th Armored Division Association, discussing news related to the activities of the U.S. Army unit and updates on previous members of the division.