LEGAL NOTICE 
This report was prepared as an account of Government sponsored work. Neither the 
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A. Makes any warranty or representation, express or implied, with respect to the 
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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 behalf of the Commission” includes any em- 
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employment or contract with the Commission. 
This report has been reproduced directly from the best available copy. 
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Department of Commerce, Washington 25, D. C. 
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