Increasing the durability of timber
Contributors: Wilson, James, 1835-1920
Series: Circular / United States Department of Agriculture, Division of Forestry -- no. 20; Circular (United States. Division of Forestry) -- no. 20.
Publisher: U.S. Dept. of Agriculture, Division of Forestry
Published: 1898
Place of publication: Washington]
Language: eng
Subjects: Wood; Preservation
Notes: [Signed] B.E. Fernow, Chief of Division of Forestry.

Approved: James Wilson, Secretary of Agriculture.