“…Copies of all papers lis ted are on file in th e Radiome tri c Physics Section of th e National Bureau of Sta ndard s, and may be read at NBS if not otherwi se a vaila ble. NOMENCLATURE AND APPLICATION 8,42,50,52,97,101 ,102,113,125,132,141,143,144,154,155,180,195,216,23 7,238,243,275,314,315,327,341 ,345 SURF ACE ROUGH NESS MEASUREMENT 3,12,13,16,36,61 ,64,65,66,69,73,80,87,95,98,99,Ill ,115,127,133,135,136,149,157,162,171,176,190,[226]…”