88 



STATISTICS OF THE COLLIERIES OF 



•I 



o 





■§ 



§ 



G 



ce 

 o 



PL. 



o 



o 

 a 



Qi I-C3 



^. p t^ 



S -^ o S S 



o p rj o O 



JH t, ^ ^ ^ 



h5 c3 



a 

 «^ 



^ -, f^ 



o OJ ^ 



U 'be fl 



en "^ 



O) M ^ 



2 i i 



be 



-73 

 C3 



^bc ,bJD 





>>-? 







Cfi Ol d) c« nj 'nj 



h g^ H ^ H ^ ^ 



fl. w u u o 



CO 



03 



c3 



as © ^ (M CO 



<ii pa o o o 



rt s^ eo •^ "O 



