“ete ee otRE aE ey oe 1 AG og PTI aetna 4 LEGAL NOTICE This report was prepared as an account of Government sponsored work. Neither the Uuited States, nor the Commission, nor any person acting on behalfofthe Commission: A. Makes any warranty or representation, expressed or implied, with respect to the accuracy, completeness, or usefulness of the information contained in this report, or that the use of any information, apparatus, method, or process disclosed in this report may not infringe privately owned rights; or B. Assumes any liabilities 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 above, “person acting on behalfof the Commission” includes any employee or contractor of the Commission, or employee of such contractor, to the extent that such employee or contractor of the Commission, or employee of such contractor Preperes, disseminates, or provides acces to, any information pursuantto his em- ployment or contract with the Commission, or his employment with such contractor Available from the Clearinghouse for Federal Scientific and Technica! Information National Bureau of Standards U.S. Department of Commerce Springfield, Virgini May 1965 1450 copies | ik PRINTED IN USA PRICE $5.00