TIMBEK DEPLETION, PRICES, EXPORTS, AND OWNERSHIP. 



49 



4-0 



* 



fc 



TffENO OF MILL F>FtlCES ^ND ESSENTIAL COST FACTORS 

 DOUGLAS F/R C/tFfGO AND FfsVL M/LL 



(3ELLI/VG PfVC PR M FEET f-O. 3 M/LL 



Fio. 18. 



