Organization and conduct of forest insect aerial surveys in Oregon and Washington,

Mode of access: Internet.

Methods of insect control.

V. 1: 2d ed., rev., 1937-1940 with 1942 printing; v. 2: 3rd edition-revised, copyright 1938, 1940, 1942 with 1944 printing.

Discussions of forage insect research workers during the North Central Branch meetings of the Entomological Society of America at Purdue University.

Mode of access: Internet.

The locust borer (Cyllene robiniae) and other insect enemies of the black locust,

Mode of access: Internet.

Forest insect conditions in central and southern Rocky Mountains, 1960.

Mode of access: Internet.

Methods of insect control ...

Reproduced from type-written copy.

The bag-worm : an injurious shade-tree insect /

Caption title.

Insect enemies of eastern forests.

Contribution from Bureau of Entomology and Plant Quarantine.

Insect enemies of western forests.

"Issued Feb. 1938, rev. July 1952."

Insect sounds.

Mode of access: Internet.

Relation of temperature to insect life /

Mode of access: Internet.

A text-book of agricultural entomology : being a guide to methods of insect life and means of prevention of insect ravage for the use of agriculturists and agricultural students /

Mode of access: Internet.

The elements of insect anatomy; an outline for the use of students in the entomological laboratories of Cornell University and Leland Stanford Junior University,

Mode of access: Internet.

Our insect friends and enemies; the relation of insects to man, to other animals, to one another, and to plants,

Mode of access: Internet.

Report on insect and fungus pests no. 1,

Mode of access: Internet.