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Filtering by: Subject Douglas fir -- Testing Contributor sim Forest Products Laboratory (U.S.)

Relationship Between Specific Gravity and Percentage of Summerwood in Wide-Ringed, Second-Growth Douglas-Fir

Creator:

Smith, Diana M.

Abstract:

For the sample of wide-ringed Douglas-fir discussed in this report, the relationship between specific gravity and percentage of summerwood is linear over a range of 16 to 60 percent summerwood content of the annual ring. The specific gravity of the summerwood and springwood portions of 96 dissected annual rings is...

Resource Type:

Technical Report

Full Text:

SUMMERWOOD IN WIDE-RINGED, SECOND-GROWTH DOUGLAS-FIR No. i04li l)ecember 19lili RELATIONSHIP BETWEEN