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tapping our greatest white-pine stand. Amer. Rev. of Reviews 75 (4) : 

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the logger and the efficiency expert. Outlook 131 : 107-109, illus. 1922. 



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a century of American lumbering. Conn. State Bd. Agr. Ann. Rept. 28 : 

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engineering features of a large southern lumbering development. Engin. 

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more scientific logging methods are needed. Canada Lumberman 42 (17) : 

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organized airplane spruce production. Aviation 4(5): 289-293, illus. 1918. 



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hardwood logging in west Virginia. Empire [State] Forester 1917: 40-43, 

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