Insect damage to mine props and methods of preventing the injury
By: T. E. Snyder
Contributors: United States. Bureau of Entomology; United States. Dept. of Agriculture
Series: Circular / United States Department of Agriculture, Bureau of Entomology -- no. 156; Circular (United States. Bureau of Entomology) -- no. 156.
Publisher: U.S. Dept. of Agriculture, Bureau of Entomology
Published: 1912
Place of publication: Washington, D.C
Language: eng
Subjects: Control; Wood borers; Safety measures; Wood; Mine timbering; Preservation
Notes: Circular No. 156.

"Issued July 13, 1912."

At head of title:  United States Department of Agriculture, Bureau of Entomology.
Table of contents: title: Introduction; title: Injury to unbarked, bound, and split props before placement in the mine. pp. 1.; title: Injury to props after placement in the mine. pp. 2.; title: Prevention of the injury to unbarked, bound, and split props before placement in the mine. pp. 3.; title: Prevention of injury to timbers by termites after placement. pp. 4.