Regulations for the sale of viruses, serums, toxins, and analogous products in the District of Columbia, etc., approved Feb. 21, 1903.

At head of title: Treasury Department, U. S. Public Health and Marine-Hospital Service.

Training aids catalog and utilization guide.

Cover title: Film catalog ... utilization guide. Motion pictures and film strips for professional and sub-professional groups.

Insect enemies of eastern forests.

Contribution from Bureau of Entomology and Plant Quarantine.

Insect enemies of western forests.

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

Rules and regulations relating to viruses, serums, toxins and analogous products, and to certain organisms and vectors, effective March 1, 1949.

Mode of access: Internet.

Proceedings of the Conference on the Relation of Birds to Arthropod-borne Viruses : Atlanta, Ga., Feb. 16 & 17, 1962.

Mimeographed.

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.

Our household insects, an account of the insect-pests found in dwelling-houses /

"Originally appeared as a series of articles in Knowledge."

Principal insect enemies of the sugar beet in the territories served by the Great Western Sugar Company,

Bibliography: p. 147-148.

Asparagus, beans, peas, etc. for profit. A practical treatise on the cultivation of asparagas, broad beans, peas, rhubarb, runner beans, sea kale and vegetable marrows for market; also the eradication of insect and fungoid pests; treatment of soils etc.

Mode of access: Internet.