Government Documents A to Z Digitization Project - 5 Matching Results

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The biology and control of the sorghum midge.

Description: Describes the life cycle of the sorghum midge, its history in the United States, the damage it can cause to plants, and the steps farmers can take to control the pest and its damage.
Date: July 1941
Creator: Walter, E. V. (Elmer Valentine), 1891-
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Aerial photography.

Description: A training manual designed to teach aerial photography for military purposes.
Date: July 8, 1941
Creator: United States. War Department.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Orientation

Description: Provides a text and reference book covering the principles of orientation. Orientation is defined as "the accurate location of datum points and the establishment of lines of known length and direction".
Date: July 15, 1941
Creator: United States. War Department.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
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