Report issued by the Bureau of Mines on investigations of air contamination in tunnels due to diesel exhaust. Air samples were taken inside tunnels and measured for carbon dioxide, carbon monoxide, and nitrogen oxides. This report includes tables and graphs.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Crawford Martin, regarding a legal question submitted for clarification: Validity of Senate Bill 292, Acts 60th Legislature, Regular Session, 1967, Chapter 729, page 1955 an Act relating to an Optional Retirement Program for teachers (Article 2922-1i, V. A. C. S.)

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Crawford Martin, regarding a legal question submitted for clarification: Authority of the State depository board to accept "preliminary loan notes issued by public housing authorities" and "participation certificates issued by the Federal National Mortgage Association" as collateral for State deposits.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Crawford Martin, regarding a legal question submitted for clarification: Construction of Section 8(c) of Article 678f, Vernon's Civil Statutes, relating to the certification by the Comptroller that a contract awarded by the State is not in excess of the amount available for such project.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Crawford Martin, regarding a legal question submitted for clarification: Whether Public Junior Colleges in Texas are "institutions which are local educational agencies" as provided by the State, and related questions.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Crawford Martin, regarding a legal question submitted for clarification: Medical assistance payments for public assistance by State Department of Public Welfare.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Crawford Martin, regarding a legal question submitted for clarification: Whether the State Insurance Commissioner has authority to approve an amendment to an insurance company's charter which has their effect of transforming the company into a commercial corporation required by law to be chartered by the Secretary of State.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Crawford Martin, regarding a legal question submitted for clarification: Interpretation of the word "State" as used in Articles 4769 and 7064, Vernon's Civil Statutes, as applied to investment of the highest percentage of admitted assets of foreign companies licensed in Texas, when computing the gross premiums tax on insurance companies.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Crawford Martin, regarding a legal question submitted for clarification: Whether authority exists to permit those current local funds of higher educational institutions in the State Treasury (as specified in Article 2543c, V. A. C. S.) which are reasonably estimated not to be needed in any given period of time, to be placed on a time deposit basis, and related questions.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Crawford Martin, regarding a legal question submitted for clarification: Eligibility requirements for membership on the Texas National Guard Armory Board.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Crawford Martin, regarding a legal question submitted for clarification: Whether the Rio Grande Independent Rehabilitation District within the meaning of the Foundation Program Act (Article 2922-15, V. C. S.) authorizing the payment of state transportation of eligible pupils on school buses, and related questions.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Crawford Martin, regarding a legal question submitted for clarification; Whether a County Commissioners Court, having levied taxes for each fund at a separate rate, may consolidate its jury fund, permanent improvement fund and general fund while maintaining separate and apart its road and bridge fund.

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Crawford Martin, regarding a legal question submitted for clarification: Clarification of Opinion M-257 re Ambient Air Quality Standards and Emission Control Regulations

Index of decisions, reports, public notices, and other documents of the U.S. Federal Communications Commission.

Index of decisions, reports, public notices, and other documents of the U.S. Federal Communications Commission.

Fuel element swelling problems have been experienced in the high-exposure fuel irradiation program in C Reactor, In an effort to determine the mechanism responsible for this swelling, three elements from C Reactor, one of which was a ruptures, were sent to the Radiometallurgy Laboratory for visual and metallographic examination. Because the swelled fuel was not numbered as to column position, the exact position of the examined elements is not known but they were believed to have come from the center of the charge and therefore exposures for these individual elements will be 25--50% higher than the column average exposures. This percentage figure was determined from data from nine tubes of C2N fuel which exhibited swelling. These nine tubes operated under nearly the same conditions as the examined elements. Maximum core temperatures for the examined elements are believed to be between 300--340C. The mechanisms for swelling were different in the high and low-exposure fuels. The high-exposure fuel exhibited grain-boundary tearing along a wide circumferential band over the entire transverse section of the fuel examined. The areas near the OD and ID were relatively free from tearing. The low-exposure fuel showed no grain boundary tearing but it did contain angular voids in …

This report presents details of the activities of Douglas United Nuclear at the Hanford site during the month of January 1968.

This report presents the details of the status of special reactor process tube loadings for the month of February 1968.

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Progress is reported in these areas: fuels development; reactor physics; plutonium utilization studies; and PRTR operatio.

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In the absence of oxidizing or reducing agents the chromatographic and coprecipitation behavior of element 102 is similar to that of the alkaline earth elements. After oxidation with ceric ions, the behavior is that expected of a trivalent actinide. The conclusion is that nobelium is the first actinide for which the +2 oxidation state is the most stable species in aqueous solution.

This report is made up of materials relating to Public Welfare programs under Social Security Act.

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