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Heat treating and inspection of metals

Description: This report discusses these topics: I. Principles of heat treating -- II. Heat-treating equipment -- III. General heat treatment of steel -- IV. Specific heat treatments for aircraft steels -- V. General heat treatment of aluminum alloys -- VII. Hardness testing -- VIII. Magnaflux inspection.
Date: September 10, 1941
Creator: United States. War Department.
Partner: UNT Libraries Government Documents Department

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.
Partner: UNT Libraries Government Documents Department

Airplane structures.

Description: Describes structural details of service airplanes used by the Army Air Corps, sufficient for personnel to perform inspection and maintenance of their equipment.
Date: October 29, 1941
Creator: United States. War Department.
Partner: UNT Libraries Government Documents Department

Airship aerodynamics.

Description: "This manual is designed as a text for the instruction of airship student pilots .... to give the knowledge of aerodynamics essential to the operation of [lighter than air aircraft]."(Page 2.)
Date: February 11, 1941
Creator: United States. War Department.
Partner: UNT Libraries Government Documents Department

Sheep-killing dogs.

Description: Describes the problems posed by sheep-killing dogs and their habits. Discusses control methods, including dog-proof fencing and law enforcement. Provides suggestions for uniform state dog laws, and a summary of existing state dog laws.
Date: February 1941
Creator: Simmons, V. L. (Victor Leonidas), 1901-
Partner: UNT Libraries Government Documents Department

Establishing cranberry fields.

Description: Describes the requirements for growing cranberries and provides instructions for establishing cranberry fields.
Date: 1941
Creator: Darrow, George M. (George McMillan), 1889-; Franklin, Henry J. (Henry James), 1883-1958. & Malde, O. G. (Ole Gustav), 1880-
Partner: UNT Libraries Government Documents Department

Pocket-gopher control.

Description: Describes the characteristics of the pocket gopher, the damage it can cause to farm crops, and methods of control.
Date: 1941
Creator: Crouch, W. E. (Winney Elmer), 1891-
Partner: UNT Libraries Government Documents Department

Field studies of insecticides used to control cabbage caterpillars in the South.

Description: Describes the damage that cabbage caterpillars can cause to plants, and provides the results of scientific research on insecticides to control the caterpillars in the southern United States.
Date: November 1941
Creator: Reid, W. J. (William John), 1902-; Smith, Charles Egan, 1887-; Reed, L. B. (Lucius Brown), 1906- & Thomas, W. A. (William Andrew), 1883-
Partner: UNT Libraries Government Documents Department

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-
Partner: UNT Libraries Government Documents Department

Growing black locust trees.

Description: Discusses the practice of growing black locust trees for profit in the timber industry as a method of erosion control and soil building. Provides suggestions for watering, weeding, insect and disease control, and marketing of seedlings.
Date: January 1941
Creator: United States. Dept. of Agriculture.
Partner: UNT Libraries Government Documents Department