ii xtmmm ttifc pmBüinr ---' Wüp-r -rinpvinr-nr»; V r ~-«a. J»^^«,. ; i«i«iiiiT,-|,-, ..ifn.i,;^^,^..".:,-.; I ,."i Destroy this report when no longer needed. Do not return it to the originator. The findings in this report are not to be construed as an official Department of the Army position unless so designated by other authorized documents. Use of trade names in this report does not constitute an official endorsement or approval of the use of such commercial products.