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[Line of Soldiers at Camp MacArthur]

Postcard image of uniformed soldiers standing in a curving line, with handwritten text in the lower-left corner: "The Mess Line. Camp MacArthur. Waco, Texas." Rows of large tents are visible to the left of the line and mess hall. Handwritten text addressed to Miss Ethel Reser and postmarked 1918 says: "Are you taking good care of the dogs? How's your lazy dad? This is how your uncle gets his eats. Al"
Date: October 20, 1917
Creator: Mann, Fred
Object Type: Postcard
System: The Portal to Texas History
The Culture of Winter Wheat in the Eastern United States (open access)

The Culture of Winter Wheat in the Eastern United States

Revised edition. Report discussing best practices for growing winter wheat in the eastern United States. Topics discussed include soils adapted to wheat cultivation, fertilizers, seed selection and preparation, and crop rotation.
Date: 1917
Creator: Leighty, C. E. (Clyde Evert), b. 1882
Object Type: Pamphlet
System: The UNT Digital Library
How to Attract Birds in the Middle Atlantic States (open access)

How to Attract Birds in the Middle Atlantic States

"For economic as well as for aesthetic reasons an effort should be made to attract and protect birds and to increase their numbers. Where proper measures of this kind have been taken an increase of several fold in the bird population has resulted, with decreased losses from depredations of injurious insects. This bulletin is one of a series intended to describe the best methods of attracting birds in various parts of the United States, especially by providing a food supply and other accessories about the homestead." -- p. 2. This particular bulletin focuses on birds in the Middle Atlantic states of Pennsylvania, New Jersey, Maryland, Delaware, West Virginia, Virginia, and North Carolina.
Date: 1917
Creator: McAtee, W. L. (Waldo Lee), 1883-1962
Object Type: Pamphlet
System: The UNT Digital Library
Combustion of Coal and Design of Furnaces (open access)

Combustion of Coal and Design of Furnaces

From Purpose and scope of Investigations: "The combustion investigations of bureau are carried on in two parts. One part is the study of the process of combustion in the fuel bed as affected by the rate of supplying air through the fuel bed, by the character of the fuel as regards structure and composition, by the thickness of fuel bed, by the method of feeding the coal and the air and by the method of heating the coal. The second part of the investigation is the study of the process of combustion of the gases and other combustible rising from the fuel bed in the combustion space, after a sufficient quantity of air has been added. The results of the study are given in this report."
Date: 1917
Creator: Kreisinger, Henry; Augustine, C. E. & Ovitz, F. K.
Object Type: Report
System: The UNT Digital Library