Laboratory and field tests of concrete exposed to the action of sulphate waters /

Mode of access: Internet.

Studies of the use of pervious fence for streambank revetment /

Mode of access: Internet.

The prevention of silting and erosion in watercourses /

Mode of access: Internet.

Reconnaissance investigations of reservoir silting in connection with flood-control surveys.

Mode of access: Internet.

Some principles of accelerated stream and valley sedimentation.

Mode of access: Internet.

Classification of valley sedimentary deposits.

Mode of access: Internet.

Some factors in the relation of stream and valley sedimentation to flood-control problems.

Mode of access: Internet.

Results of tests on a chute with a St. Anthony Falls stilling basin /

Mode of access: Internet.

Bulletin - Cooperative Extension Service, the Ohio State University.

Issues for Oct. 1905-June 1926 numbered vols. 1-21; for July 1926- no. 51-

Program of work of the United States Department of Agriculture for the fiscal year ... [electronic resource].

Report for fiscal year 1918 not published.

Cooperative extension work.

At head of title: U.S. Department of Agriculture.

I. Arrays of sex pheromone traps and the important variables affecting catches of gypsy moth, Lymantria dispar (Linneaus [sic]) Lepidoptera: Lymantriidae /

"May 1980."

Report and recommendations of the Plant Science and Entomology Research Advisory Committee : developed at its meeting, February 6-10, 1967, Wheaton, Maryland.

Mode of access: Internet.

Bibliography of the Cicadelloidea (Homoptera: Auchenorhyncha).

"Supersedes the Bibliography of the Homoptera Auchenorhyncha (Metcalf 1944a) as far as references to the Cicadelloidea are concerned."

Monthly letter of the Bureau of Entomology, United States Department of Agriculture.

Mimeographed.