765.2 753.3 754.0 752,8 752.8 754.1 765.9 754.9 - 765 , 2 ' + 753.9 + 766,0 — — 1-l758 , 91+ - l758 , 91+ 757 , 3 ; + 761 , 01+ 768 , 5+ 1757 , l [+