Hydrocyanic-acid gas against household insects
By: L. O. Howard
Contributors: United States. Bureau of Entomology; United States. Dept. of Agriculture
Series: Circular / U. S. Dept. of Agriculture. Bureau of Entomology -- no. 46, Second Series.; Circular (United States. Bureau of Entomology) -- no. 46, Second Series.
Publisher: U.S. Dept. of Agriculture, Bureau of Entomology
Published: 1907
Place of publication: Washington, D.C
Language: eng
Subjects: Hydrocyanic acid gas; Pesticides; Insect pests; Control
Notes: "Issued February 20, 1907."

Circular No. 46, Second Series.
Table of contents: title: Directions for use. pp. 3.; title: The cyanide and gas a deadly poison. pp. 5.; title: Summary of method. pp. 6.