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  Partner: UNT Libraries Government Documents Department
 Decade: 1930-1939
 Year: 1937
 Collection: Environmental Policy Collection
Nitrogen-fixing bacteria and legumes.

Nitrogen-fixing bacteria and legumes.

Date: December 1937
Creator: Leonard, Lewis T. (Lewis Thompson), 1885-
Description: Describes the importance of nitrogen-fixing bacteria on crops of legumes.
Contributing Partner: UNT Libraries Government Documents Department
Soil and water conservation in the Pacific Northwest.

Soil and water conservation in the Pacific Northwest.

Date: July 1937
Creator: Rowalt, E. M.
Description: Describes types of erosion and methods for preventing the erosion of soil by water and wind.
Contributing Partner: UNT Libraries Government Documents Department