(fire! Mi ylolp? bao Atte tH) < Veiin plod déO0@ jiieehn WO WGI IUKT eHOD ef . OTASCPIS MIATIE HA FASO vOS rHGo au indeed AY ager | DISCLAIMER This report was prepared as an account ot work sponsared by an agency af the United States Goserament. Neither the Unued States Government nor any agency thereof, nor ans of their employees. nor any of their contractors, subcontractors, of their em- plovees, makes anv warrants, express or implied, or assumes any legalliability or re- sponsibility for the accuracy. Completeness, at usefulness of any information. appara- tus, product, or process disclosed, or represents that us use would not infringe prisately owned rights. Reference herein to anv specific commercial product, process, ot service bs trade name, trademark. manulacturer, or otherwise, does not necessarily constitute of unply us endursemeat. recommendation, or favoring by the United States Government or any agency, contractor or subcontractor thereuf, The views and opimons ot authors expressed herein do nut necessarily state or reflect those of the Uristed States Goverament or any agency. contractor or smbcontractor thereuf. Printed in the United States of America Available from Nasional Technical Information Service US. Department of Commerce 3285 Port Roval Road Sprinetield. VA 22161 Price: Printed Copy $7.00; Microfiche §3.50 ER: "OTD SK wie ot et. We