U. S. Civil Service commission announces examination for archives assistant, library assistant. $2,450 to $3,100 a year (grades GS-2 to GS-5), herbarium aid (plant mounting) $2,450 and $2,650 a year (grades GS-2 and GS-3), museum aid, $2,450 to $3,825 a year (grades GS-2 to GS-7), announcement 218.