Microscopic Structure and Concentratability of the Important Iron Ores of the United States (open access)

Microscopic Structure and Concentratability of the Important Iron Ores of the United States

Outline of Problem: "This paper covers a survey of 19 ores collected from seven of the more important iron-ore districts of the United States and is a contribution by the ore-dressing section of the United States Bureau of Mines to general research program on iron and steel being conducted by the Bureau."
Date: 1936
Creator: Cooke, S. R. B.
Object Type: Report
System: The UNT Digital Library
Injury Experience in the Coking Industry, 1951 (open access)

Injury Experience in the Coking Industry, 1951

From Introduction and Summary: "Reports from operating companies showed that 25,715 men worked at coke ovens in 1951, about 6 percent more than were employed in 1950 and, except in 1943, the largest work force since 1930, when 28,139 men were employed. The work time for all employees was 70,190,493 man-hours. The returns indicated an average of 344 work days per man as compared with 341 days in the previous year. Accidents at the ovens resulted in the death of 10 and injury to 768 workers, both of these figures representing fewer injuries than in 1950."
Date: 1954
Creator: Reese, Seth T.; Kearney, Naomi W. & Miller, Elizabeth A.
Object Type: Report
System: The UNT Digital Library
Farmers' Reading Courses (open access)

Farmers' Reading Courses

Report discussing the main features of the farmers' reading courses that have become popular in several states through agricultural colleges and experiment stations. The reading courses are designed to provide farmers with a systematic approach to their work through the study of a scientifically sound and accessible textbook curriculum.
Date: 1900
Creator: Bailey, L. H. (Liberty Hyde), 1858-1954
Object Type: Pamphlet
System: The UNT Digital Library
Alsike Clover (open access)

Alsike Clover

Report discussing the distribution and cultivation of the leguminous crop alsike clover, which grows primarily in the northeastern United States. Topics discussed include soil requirements, seeding, uses, and insect enemies and diseases.
Date: 1920
Creator: Pieters, A. J.
Object Type: Pamphlet
System: The UNT Digital Library
Common White Grubs (open access)

Common White Grubs

"The present publication is merely intended to give a brief summary of the life history and habits of [common white grubs], as now understood, together with the best known means of controlling them." -- p. 2.
Date: 1913
Creator: Davis, John J. (John June), 1885-1965
Object Type: Pamphlet
System: The UNT Digital Library
The Roundheaded Apple-Tree Borer (open access)

The Roundheaded Apple-Tree Borer

This report discusses the roundheaded apple-tree borer, an insect in the eastern and midwestern United States that, in its larval stage, destroys the bark and wood of apple trees. Several methods of control are discussed, including worming, paints and washes, and sprays.Apple-tree borers.
Date: 1915
Creator: Brooks, Fred E.
Object Type: Pamphlet
System: The UNT Digital Library
The Carpet Beetle or "Buffalo Moth" (open access)

The Carpet Beetle or "Buffalo Moth"

Report discussing the carpet beetle (also known as the buffalo moth) and its geographic distribution, life cycle, habits, and methods for exterminating it.
Date: 1914
Creator: Howard, L. O. (Leland Ossian), 1857-1950
Object Type: Pamphlet
System: The UNT Digital Library
The Culture of Winter Wheat in the Eastern United States (open access)

The Culture of Winter Wheat in the Eastern United States

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: 1914
Creator: Leighty, C. E. (Clyde Evert), b. 1882
Object Type: Pamphlet
System: The UNT Digital Library
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
Rape as a Forage Crop (open access)

Rape as a Forage Crop

Report discussing the cultivation of the rape plant as a forage crop, including its varieties, soil requirements and preparation, and harvesting. Also describes various uses of rape as a forage crop, weed destroyer, and cover crop.
Date: 1903
Creator: Hitchcock, A. S. (Albert Spear), 1865-1935
Object Type: Pamphlet
System: The UNT Digital Library
Sixty-Day and Kherson Oats (open access)

Sixty-Day and Kherson Oats

Report discussing the results of experiments undertaken to determine the viability of early oats in different regions of the United States since early oats typically thrive only in the Corn Belt and Great Plains regions.
Date: 1910
Creator: Warburton, C. W. (Clyde William), 1879-1950
Object Type: Pamphlet
System: The UNT Digital Library
The Wheat Jointworm and Its Control (open access)

The Wheat Jointworm and Its Control

Revised edition. "The wheat jointworm is a very small grub which lives in stems of wheat, sucking the juices of the plant and causing a swelling in the stem. The egg from which it hatches is laid in the stem by an insect resembling a small black ant with wings. This insect attacks no other kind of plant. The injury which it does to wheat is very distinct from that caused by the Hessian fly, yet the depredations of these two insects are often confused by farmers. This paper is intended, therefore, to give a brief outline of the life history and the nature of the injury to the plant by the jointworm so that any farmer may readily recognize its work and be able to apply the measures of control herein recommended." -- p. 3-4
Date: 1918
Creator: Phillips, W. J. (William Jeter), 1879-1972
Object Type: Pamphlet
System: The UNT Digital Library
The Wheat Jointworm and Its Control (open access)

The Wheat Jointworm and Its Control

Revised edition. "The wheat jointworm is a very small grub which lives in stems of wheat, feeding on the juices of the plant and causing a slight swelling or distortion of the stem above the joint. The egg from which it hatches is laid in the stem by an insect resembling a small black ant with wings. This insect attacks wheat only. The injury which it causes to wheat is very distinct from that caused by the Hessian fly, yet the effects caused by these two insects are often confused by farmers." -- p. 1-2. This bulletin gives a brief outline of the life cycle and the nature of the injury to the plant by the jointworm so that any farmer may readily recognize its work and be able to apply the measures of control herein recommended.
Date: 1940
Creator: Phillips, W. J. (William Jeter), 1879-1972 & Poos, F. W.
Object Type: Pamphlet
System: The UNT Digital Library
The Cultivation of Peppermint and Spearmint (open access)

The Cultivation of Peppermint and Spearmint

This report discusses the cultivation of peppermint and spearmint in the United States, especially in the northeastern and mid-western United States. Climate and soil conditions, fertilizers, diseases and pests, and the costs of cultivation are discussed.
Date: 1915
Creator: Van Fleet, Walter
Object Type: Pamphlet
System: The UNT Digital Library
Beekeeping in the Clover Region (open access)

Beekeeping in the Clover Region

"Beekeeping methods suitable for the clover region are well developed but many beekeepers of this region are failing to obtain the full available honey crop because of deficiencies in their practice. A system of management is here given which will result in a full crop from these sources. The variation in the value of the clovers to the beekeeper is also discussed and the methods to be followed in bringing the clover region back to its former prominence in honey production are outlined." -- p. 2
Date: 1922
Creator: Phillips, Everett Franklin, 1878-1951 & Demuth, Geo. S. (George S.)
Object Type: Pamphlet
System: The UNT Digital Library
Beekeeping in the Buckwheat Region (open access)

Beekeeping in the Buckwheat Region

"The production of the full honey crop from buckwheat requires a plan of apiary management quite different from that of most other beekeeping regions. A system of management is here given which will result in a full honey crop and at the same time control European foulbrood, which is so prevalent in the buckwheat region. Methods are also given which may be used in case the clovers are valuable as sources of nectar." -- p. 2
Date: 1922
Creator: Phillips, Everett Franklin, 1878-1951 & Demuth, Geo. S. (George S.)
Object Type: Pamphlet
System: The UNT Digital Library
Gypsum Products: Their Preparation and Uses (open access)

Gypsum Products: Their Preparation and Uses

Technical report issued by the Bureau of Mines over the different uses of gypsum. The sources and uses of gypsum are presented and discussed. This report includes tables, photographs, and illustrations.
Date: July 1917
Creator: Stone, Ralph W.
Object Type: Report
System: The UNT Digital Library
Gas Masks for Gases Met in Fighting Fires (open access)

Gas Masks for Gases Met in Fighting Fires

Technical paper issued by the Bureau of Mines over the development of gas masks designed for fighting fires. The characteristics of the different types of masks in development are presented. This paper includes tables, illustrations, and photographs.
Date: August 1921
Creator: Fieldner, Arno Carl; Katz, Sidney H. & Kinney, Selwyne P.
Object Type: Report
System: The UNT Digital Library
Pay Secrecy (open access)

Pay Secrecy

This issue brief discusses pay secrecy policies that nearly half of workers nationally reported that they were either contractually forbidden or strongly discouraged from discussing their pay with their colleagues. Includes a listing of state laws that protect employees in discussing pay and compensation.
Date: June 2016
Creator: United States. Department of Labor.
Object Type: Report
System: The UNT Digital Library
Experimental Lake Erie Harmful Algal Bloom Bulletin 30, November 1, 2016 (open access)

Experimental Lake Erie Harmful Algal Bloom Bulletin 30, November 1, 2016

Periodic factsheet reporting on the level of algae bloom in Lake Erie, particularl harmful Microcystis cyanobacteria. It Includes an overview and graphs comparing the levels to previous measures.
Date: November 1, 2016
Creator: United States. National Oceanic and Atmospheric Administration.
Object Type: Text
System: The UNT Digital Library