00886cam a22002651 4500 agr17001005 DLC 20260227110939.0 941026s1917 dcua f000 0 eng c agr17001005 (OCoLC)31358602 Library, U.S. Dept. of Agriculture OrP DLC premarc S24 .A825 1Ag84Sp no.117 Thelen, Rolf. The substitution of other materials for wood ... By Rolf Thelen ... Washington, Govt. Print. Off., 1917. 78 p. incl. diagrs. 23 cm. United States. Dept. of Agriculture. Report, no. 117 Studies of the lumber industry; pt. XI. Contribution from the Forest service. Wood Substitues. United States. Department of Agriculture. Report, no. 117. 8521 8521