Combustion Apparatus (open access)

Combustion Apparatus

Patent for a combustion apparatus that will maximize the heat produced with any given amount of fuel.
Date: December 14, 1920
Creator: Anderson, Robert James
Object Type: Patent
System: The Portal to Texas History
The Beet Leaf-Beetle and Its Control (open access)

The Beet Leaf-Beetle and Its Control

Report discussing the beet leaf-beetle, which is common in the Rocky Mountain region. Discussion include physical appearance, geographic distribution, life cycle, affected plants, and methods of control.
Date: 1921
Creator: Chittenden, F. H. (Frank Hurlbut), 1858-1929
Object Type: Pamphlet
System: The UNT Digital Library
Strawberry Culture: Western United States (open access)

Strawberry Culture: Western United States

Revised edition. "This bulletin applies to that part of the United States in which ordinary farm crops are grown largely under irrigation. It describes methods practiced in the more important commercial strawberry-growing districts in the irrigated regions of the West; it aims to aid those familiar only with local and perhaps unsatisfactory methods, as well as inexperienced prospective growers. The fundamental principles of the irrigation of strawberries are substantially the same as those which apply in the growing of other crops. Details of operation must necessarily be governed largely by the character of the crop grown. Since strawberries in the humid regions frequently suffer from drought, which causes heavy losses in the developing fruit, the information may prove suggestive to many growers in those localities who could install an irrigation system at small expense. Detailed information is also given as to soils and their preparation, different training systems, propagation, planting, culture, the leading varieties, harvesting, and shipping. Methods of using surplus strawberries for preserves and jams, for canning, and for flavoring for various purposes are given." -- p. 3
Date: 1928
Creator: Darrow, George M. (George McMillan), 1889-
Object Type: Pamphlet
System: The UNT Digital Library
Factors Governing the Entry of Solutions into Ores During Leaching (open access)

Factors Governing the Entry of Solutions into Ores During Leaching

Technical paper issued by the Bureau of Mines over studies on the leaching of copper-bearing ores. As stated in the introduction, the "penetration of the leaching medium into the body of the ore particles" (p. 1) is discussed. This paper includes tables, photographs, and illustrations.
Date: 1929
Creator: Sullivan, John D.; Keck, Walter E. & Oldright, George L.
Object Type: Report
System: The UNT Digital Library
Rhodes Grass (open access)

Rhodes Grass

Revised edition. "Rhodes grass was introduced from southern Africa in 1902, and has proved of value for cultivation in the warmer parts of the United States, being grown more largely in Florida and Texas than elsewhere.... It makes a heavy yield of hay of excellent quality, as the stems are slender, tender, and very leafy. The hay is cured easily and is relished by all kinds of live stock.... This bulletin mentions the soil preferences of this grass and gives the methods of seeding and after-treatment employed as well as handling the hay and pasturing and seed saving." -- p. 2
Date: 1922
Creator: Tracy, S. M. (Samuel Mills), 1847-1920
Object Type: Pamphlet
System: The UNT Digital Library
Leaching Nonsulphide Copper Ores with Sulphur Dioxide (open access)

Leaching Nonsulphide Copper Ores with Sulphur Dioxide

Report issued by the Bureau of Mines discussing the sulfurous acid leaching of the Southwest experiment station. Operations and analyses of the experiment station are presented. This report includes tables, illustrations, and photographs.
Date: May 1923
Creator: Van Barneveld, Charles E. & Leaver, Edmund S.
Object Type: Report
System: The UNT Digital Library