LEGAL NOTICE This report was prepared as an account of Government sponsored work. Neither the United States, nor the Commission, nur any person acting onbehaif of the Commission: A. Makes anv warranty or representation, express or implied, with respect to the accuracy, completeness,or usefulness of the intormation contained in tnis report, or that the use of any information, apparatus, method, or process disclosed in this report mav not infringe privateiy owned rights; or B. Assumes anviiabilities with respect to the use of, or for damages resulting from the use of any information, apparatus, method, or process disclosed in this report. As used in the abuve, “person acting on behalf of the Commission” includes any employee or contractor .f the Commission to the extent that such employee or contractor prepares, handles ur aistributes, or provides access to, any information pursuant to his employment or contract with the Commission. This report has been reproduced directly from the best available copy. Printed in USA. Price $1.75. Available trom the Office of Technical Services, Department of Commerce, Washington 25, D.C. AEC Tec‘ nical Informanon Service Extension Oak Ridge, Tennessee