COST OF WASTE RESINOUS WOODS. 



25 



This waste wood would yield all the wrapping, building, and other 

 low-grade colored papers, and all the rosin, rosin oils, turpentines, 

 rosin spirits, and methyl alcohol which are now being produced in 

 this country. 



YIELDS FROM RESINOUS WOODS. 



The following table shows the quantities of the several products 

 which may be made from lightwood and from ordinary mill waste, 

 both by cooking with caustic alkali, or first extracting with a volatile 

 solvent and then cooking with alkali. 



TABLE 11. Yields of various products from 1 cord (4,000 pounds) of long-leaf pine. 



Pounds. 



2 Bushels. 



The data that have come to the attention of the Bureau of Chem- 

 istry indicate that the products from Douglas fir and from Norway 

 pine stumps fall within the limits given above for long-leaf pine. 

 As a rule, seasoned stumps should approximate the higher yields 

 from lightwood. 



COST OF WASTE RESINOUS WOODS. 



The cost of waste wood delivered at the mills in the South varies 

 widely, but rarely exceeds $5 a cord. The Bureau of Chemistry has 

 found that the average cost of lightwood delivered at the turpentine 

 plants approximates $3.50 a cord. In case the wood is gathered by 

 a lumbering company from its own forests and over its own tram- 

 roads this cost frequently does not exceed $2.50 and may fall as low 

 as $1 a cord. 



The stumps of long-leaf Norway pine and of Douglas fir, after 

 the timber has been cut several years, are usually much richer in 



