Hydrocyanic-acid gas against household insects
By: L. O. Howard and C. H. Popenoe
Contributors: Popenoe, Charles Holcomb, 1884- joint author
Series: Circular / U. S. Dept. of Agriculture. Bureau of Entomology -- no. 163; Circular (United States. Bureau of Entomology) -- no. 163.
Publisher: U.S. Dept. of Agriculture, Bureau of Entomology
Published: 1912
Place of publication: Washington, D.C
Language: eng
Subjects: Household pests; Control; Hydrocyanic acid gas; Fumigation
Notes: Cover title.

Circular No. 163.

"Issued November 29, 1912."

At head of title:  United States Department of Agriculture, Bureau of Entomology.
Table of contents: title: Process of fumigation. pp. 5.; title: The cyanide and gas a deadly poison. pp. 6.; title: Summary of method. pp. 8.