10 Matching Results

Search Results

Results: 1 - 10
open access

The Flora of the New Albany Shale: Part 1. Diichnia Kentuckiensis, a New Representative of the Calamopityeae

Description: Abstract: A new genus of the Cycadofilicales, Diichnia, is described from the New Albany shale, of late Devonian age, in central Kentucky. The one known species, which is based on stem material showing internal structure, belongs in the family Calamopityeae. Foundation for the generic segregation is seen in the double leaf truce of the genotype, D. kentuckiensis, in contrast with the originally single trace in other known representatives of the family.
Date: 1936
Creator: Read, Charles B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department

[Photograph of the border between Virginia, Tennessee, and Kentucky at Cumberland Gap]

Description: Photograph of a sign for Cumberland Gap at the border between Virginia, Tennessee, and Kentucky. Standing next to the sign is a woman with a car parked not far from her. A road cutting through the mountains and trees runs through the area along with signs for a cave, the border for Virginia and Kentucky, and signs for the speed limit.
Date: [1939..1989]
Creator: Clark, Joe
Item Type: Refine your search to only Photograph
Partner: UNT Libraries Special Collections
open access

Method and Cost of Dredging Sand and Gravel by the Ohio River Sand Co., Louisville, Kentucky

Description: Report issued by the U.S. Bureau of Mines discussing dredging methods of used by the Ohio River Sand Company. The different methods and costs used to recover gravel and sand are described. This report includes tables and illustrations.
Date: January 1931
Creator: Duffy, J. Hamilton
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Safety Cars of the United States Bureau of Mines

Description: Report issued by the U.S. Bureau of Mines discussing the mine stations and safety cars used to reach miners in distress. As stated in the report, "the purpose, equipment, personnel, and construction of its safety cars" is presented. This report includes an illustration, and a map.
Date: March 1931
Creator: Forbes, J. J. & Ankeny, M. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Chestnut Blight

Description: "Chestnut blight, caused by a fungus brought into this country from Asia before 1904, is responsible for the death of millions of acres of chestnut growth in New England and the Middle Atlantic States. The disease spread rapidly to nearly all parts of the range of the native chestnut, and the remaining stands of the southern Appalachians face certain destruction. The present known distribution, its symptoms, and the fungus that causes the disease are described. The blight fungus itself does not… more
Date: 1930
Creator: Gravatt, G. F. & Gill, L. S.
Item Type: Refine your search to only Pamphlet
Partner: UNT Libraries Government Documents Department
open access

Farm Practice with Lespedeza

Description: "The use of lespedeza as a farm crop has rapidly increased during the past few years. The increase in the use of lespedeza is due partly to the excellent results that have been obtained by the farmers who have been growing the Common variety, for hay and for pasture and soil improvement, but more particularly to the introduction of some new varieties that produce better yields, are adapted to a wider range of climatic conditions, and are generally better suited to the needs of the average farm … more
Date: 1934
Creator: Miller, H. A.
Item Type: Refine your search to only Pamphlet
Partner: UNT Libraries Government Documents Department
open access

Saving Soil with Sod in the Ohio Valley Region

Description: Clearing of forests, overgrazing, and soil erosion have greatly depleted the soil of the Ohio Valley in the United States. Farmers should implement agricultural practices that encourage the growth of sod, which has the potential to restore the soil. "The use of grass in increasing the productivity of farm land, in conserving soil on pasture and cropland, and in protecting smaller eroded or erodible areas is discussed in this bulletin." -- p. i
Date: 1939
Creator: Welton, Kenneth
Item Type: Refine your search to only Pamphlet
Partner: UNT Libraries Government Documents Department
open access

Cattle-Fever Ticks and Methods of Eradication

Description: Revised edition. This bulletin discusses the cattle-fever tick and methods for controlling it. Possible methods include dipping, pasture rotation, and arsenical dips. The life history of the tick is also discussed.
Date: 1930
Creator: Ellenberger, W. P. & Chapin, Robert M.
Item Type: Refine your search to only Pamphlet
Partner: UNT Libraries Government Documents Department
open access

Cattle-Fever Ticks and Methods of Eradication

Description: Revised edition. This bulletin discusses the cattle-fever tick and methods for controlling it. Possible methods include dipping, pasture rotation, and arsenical dips. The life history of the tick is also discussed.
Date: 1932
Creator: Ellenberger, W. P. & Chapin, Robert M.
Item Type: Refine your search to only Pamphlet
Partner: UNT Libraries Government Documents Department
open access

A Study of Oxidation of the Oil in Two Air-and Air-Gas-Repressuring Projects

Description: Report issued by the U.S. Bureau of Mines on the oxidation levels caused from different oil recovery processes. Experiments were conducted to determine the effect of air on crude oil, and the degree of oxidation. This report includes tables, and a map.
Date: January 1937
Creator: Johnson, T. W. & Taylor, Sam S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
Back to Top of Screen