For the trees : an illustrated history of the Ozark-St. Francis National Forests, 1908-1978 /

Bibliography : p. 169-170.

Hog cholera: its history, nature, and treatment, as determined by the inquiries and investigations of the Bureau of Animal Industry.

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

The cotton plant : its history, botany, chemistry, culture, enemies, and uses /

At head of title: U.S. Department of Agriculture. Office of Experiment Stations.

State agricultural experiment stations : a history of research policy and procedure /

Maps on lining papers.

History and status of the green peach aphid as a pest of tobacco in the United States /

Includes bibliographical references (p. 10-12).