Color tests for differentiating heartwood and sapwood of certain oaks, pines, and Douglas-fir.
Contributors: Forest Products Laboratory (U.S.)
Edition: Rev. June 1954.
Series: Technical note -- no. 253.; Technical note (Forest Products Laboratory (U.S.)) -- no. 253.
Publisher: U.S. Dept. of Agriculture, Forest Service, Forest Products Laboratory
Published: 1954
Place of publication: Madison, Wis
Language: eng
Subjects: Heartwood -- Identification.; Sapwood -- Identification.; Wood -- Testing.
Genres: Identification.
Notes: Caption title.

Also issued online.