NOTICE

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LEGAL

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This report was prepared as an account of Government sponsored work. Neither the United
States, nor the Commission, nor any person acting on behalf of the Commisaion:
A. Makes af. wafrict, oF represeniauon, exp. ecoed or impiled, wiin respect to the accu
racy, completeness, or usefulness of the information contained in this report, or that the use
of any information, apparatus, method, or procesa digciosed in this report may not Infringe
privately owned rights; or
B. Assumes any liabliities with respect to the use of, or for darnagea resulting from the
use of any information, apparatus, method, or process disclosed in this report.
AB used in the above, ‘‘person acting on behalf of the Commission” tncludes any employee or contractor of the Commisation, or employee of such contractor, to the extent that
such employee or contractor of the Commission, or employee of such contractor prepares,
disseminates, or provides access to, any information pursuant to his employment or contract
with the Commission, or his employment with such contractor.

This report has been reproduced directly from the best
available copy.

Printed in USA. Price $3.00. Available from the Clearinghouse for Federal Scientific and Technical Information, National Bureau of Standards, U. S. Department of Commerce,
Springfield, Virginia 22151.

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