USEFUL DATA 



Rectan- 

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C 



CO CO 



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U5\ MX U5~ 



\«> \^ \00 \00 \jj. NO) \00 N^ 



U5\ e<s\ eo^ 



^i-HC<J ,-i^(M ^^(M ^(N<M(N »-4(N(N(N 



\N \00 \^ N00\^\O0 \^ \00 \m \jj. \00 \00 \jjl \Q0 \00 \jj. \H. 

 rH\ u9\ ,-h\ io\ eoX us\ e«9\ t-\ uis e.j\ io\ »o\ M\ t-\ io\ eo\ e<^ 



T-H(N T-<,-i(M ^^c^ i-i(N(N(N T-i<N(N(N 



tOOtO r^COtO COt^O QOOtOfM r^OOO(M 



l:^0<M ^Tfit^ COCOO tOOOC^CO COOtOOi 



^^ ^^^ ^ ^ C^ ^ ^ C<i Oi i-i(M(M(M 



COOOO 00O<M 00O(N 00O<MTt< OOOC^ 



81 



