A NATIONAL PLAN FOR AMERICAN FORESTRY 



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purposes, the distribution among uses in the United States being 

 shown in table 11. 



The naval stores produced in the United States constitute about 

 68 percent of the world's supply. Industries of the United States 

 consume 55 percent of the turpentine and about 48 percent of the 

 rosin leaving a large balance of both for export. 



Table 12 shows the production of naval stores from gum (from the 

 living tree) and from wood (stumps and heartwood) for the period 

 1910 to 1929, inclusive^ 



The requirements of industry and commerce have, until the years 

 1930 to 1932, when the depression has upset markets the world over, 

 taken the total annual production without more than temporary 

 accumulation of stocks in the primary concentration ports. While 

 the carry-over at primary ports for the past three seasons has been 

 and still is a serious burden on the producers of naval stores, there is 

 small reason to doubt the orderly absorption of these surpluses when 

 general economic conditions improve. 



The relative proportion of gum naval stores and wood naval stores 

 depends very much upon available timber for gum production. 



TABLE 11. Percentage distribution of total turpentine and rosin consumption in 

 various manufactures in the United States as of 1928 1 



1 From Gamble's International Naval Stores Year Book, 1930-31. 



2 Less than Ho of 1 percent. 



3 Included with rosin oil. 



TABLE 12. Naval stores production in the United States, 1910-29 



1 Compiled by Bureau of Chemistry. Includes trade and association estimates. 

 ! Crop year beginning Apr. 1. 



3 Quantities given in barrels of 500 pounds. 



4 Incomplete; does not include destructively distilled wood turpentine. 



