Skip to page content
USDA Forest Service
  
Treesearch

Research & Development Treesearch

 
Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Northern
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help
 

Science.gov - We Participate


USA.gov  Government Made Easy


Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.
20090-6090

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

View PDF (630 KB)

Title: Resin distribution in second-growth ponderosa pine

Author: Paul, B.H.;

Date: 1955

Source: Rep. FPL-2058. Madison, WI: U.S. Department of Agriculture, Forest Products Laboratory. 7 p

Publication Series: Other

Description: In a study of specific gravity of second-growth ponderosa pine, there was visible evidence of resin in a part of the specific gravity specimens. Each specimen contained 10 annual growth rings in cross sections taken at 4 heights in the merchantable length of the trees. Since the presence of resin introduced an uncertain amount of error in the specific gravity values, it seemed advisable to extract the resin not only from the visibly resin-soaked specimens but also from all other specimens used. In this way, the general distribution of resin in the trees was found, and an approximate correction factor was obtained for the specific gravity values of the unextracted wood.

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

XML: View XML

Citation:


Paul, B.H. 1955. Resin distribution in second-growth ponderosa pine. Rep. FPL-2058. Madison, WI: U.S. Department of Agriculture, Forest Products Laboratory. 7 p.

 


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.