UNT Libraries Government Documents Department - 169 Matching Results

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Gas Masks for Gases Met in Fighting Fires

Description: 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.

Annual Report of Research and Technologic Work on Coal: Fiscal Year 1941

Description: Report issued by the U.S. Bureau of Mines discussing the annual report over the research and technology of coal during 1941. As stated in the foreword, "these investigations increase our fund of exact knowledge on the properties and composition of American coals and lead to better methods in mining, preparing, storing, and utilizing coal" (p. 4). This report includes tables, illustrations, photographs, and a map.
Date: November 1941
Creator: Fieldner, Arno Carl & Schmidt, L. D.

The Wheat Jointworm and Its Control

Description: 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.

The Roundheaded Apple-Tree Borer

Description: 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.

Alsike Clover

Description: 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.

Rape as a Forage Crop

Description: 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

Sixty-Day and Kherson Oats

Description: 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

Common White Grubs

Description: "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

Farmers' Reading Courses

Description: 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

A Profitable Tenant Dairy Farm

Description: Report explaining how to successfully operate a tenant dairy farm by example of a 120-acre farm in southern Michigan. The farm discussed was owned by Mr. J. N. Neal and managed by Mr. Charles J. Angevine.Topics under consideration include operations contracts, cropping systems, buildings, employees, manure, equipment, and finances.
Date: 1907
Creator: Carrier, Lyman