A SUMMARY OF THE TIMBER RESOURCE REVIEW 



11 



100- 



75- 



50- 



25- 



1900 



OTHER PHYSICAL-STRUCWRrlMRlALr 



1910 1920 1930 1940 1950-52 



SOURCE: Bureau of the Census, RAW MATERIALS IN THE UNITED STATES ECONOMY, 1900-1952, Washington, DC, 1954. 



Figure 3 



„,. VENEER LOGS AND BOLTS^>X!i/ 



1905 



1915 



1925 



1935 



1945 



1952 



Figure 4 



