v.1. Structure, identification, defects, and uses of the commercial woods of the United States.--v. 2. The physical, mechanical, and chemical properties of the commercial woods of the United States.
Vol.1 is a revision of Commercial timbers of the United States by H. P. Brown and A. J. Panshin, pub. 1940, which replaced their Identification of the commercial timbers of the United States, pub. 1934.