Tests of Rocky Mountain woods for telephone poles
By: by Norman De W. Betts and A.L. Heim
Contributors: Heim, A. L. (Arthur Lloyd), 1881-
Series: Bulletin of the U.S. Department of Agriculture -- no. 67; Bulletin of the U.S. Department of Agriculture -- no. 67.
Publisher: U.S. Dept. of Agriculture
Published: 1914
Place of publication: Washington, D.C
Language: eng
Number of pages: 28
Subjects: Wood poles; Poles and towers; Electric lines; Forest products
Notes: Caption title.

"March 17, 1914."

"Professional paper."