400 METERS Yeon t ¥ . ' t “ cam A eh ! i! ’ 7 Myrds oy ‘ *a athe 2 ae te . 5 t ‘ 188.0. ta ye ‘“e id. if 4rey rhe sab ty © & *a oeBlyoa ov ae eer + - 8 4 . sor fy ¥ eh ed¥ 417)» eh Ries ¥ $+ ~~ 3 s tn + ; & & ~. 37 M, . ‘ass « ee: YH eels * ot Fig. B. oe La pers = wt Ww s& ® t wt (61 s 4 4 “erm pot rTa mew oe, '