46 



TIMBER DEPLETION, PEICES, EXPOBTS, AND OWNEESHIP. 



J^260 



zoo 



190 



ISO 



no 



160 



ISO 



I-4-0 



130 



IZO 



no 



100 



90 



60 



70 



60 



50 



4-0 



30 



SO 



10 



TREND OF AVERAGE PRICES OF UPPER 

 GRADES OF WALNUT AND EASTERN WHITE 

 PINE, IN RELATION TO UPPER GRADES OF 

 SOUTHERN YELLOW PINE. 



IVHOLE5/JLE Pff/CES F£f? M. F£ET /N 

 E/ISTEffA/ MA/f/fETS 



W ■ • • ' ' I '''I II 



J840 IB4S laSO I85S I860 1865 1870 I87S 1880 1685 1890 1895 1900 1905 1310 /SIS 1920 



y^EARS 



FlQ. 16. 



