Map displays soil types along with creeks, rivers, towns, schools, churches, ranches, roads, and railroads. Includes legend and symbols.

Text describes climate, agriculture, and soils of Erath County, Texas.

Map displays soil types along with bayous, creeks, lakes, ponds, rivers, towns, schools, churches, stores, mills, roads, and railroads. Includes legend and symbols.

Text describes the area, climate, agriculture, and soils of Red River County.

Volume provides abstracts of agricultural experiments conducted during the year. Also includes statistics, convention reports, bulletins, bibliographies and listings for Spanish edition publications from the Porto Rico Station. Name and subject indexes start on page 901.

Volume provides abstracts of agricultural experiments conducted during the year. Also includes statistics, convention reports, bulletins, bibliographies and listings for Spanish edition publications from the Porto Rico Station. Name and subject indexes start on page 901.

Volume provides abstracts of agricultural experiments conducted during the year. Also includes statistics, convention reports, bulletins, bibliographies and listings for Spanish edition publications from the Porto Rico Station. Name and subject indexes start on page 901.

From Introduction: "The Bureau of Mines since its establishment has always taken an active interest in the utilization of lignite and in the development of the lignite deposits of the United States. Extensive lignite fields occur in the west central States, notably in North Dakota, Montana, Wyoming, Colorado, and Texas; there are smaller areas in several other Sates, some of which are widely separated."

From Introduction: "This bulletin presents the results of 36 tests made on a 468-horse-power Edge Moor boiler fired with pulverized coal at the Oneida Street Station of the Milwaukee Electric Railway & Light Co., Milwaukee, Wis."

From Introduction: "This bulletin aims ti bring the salient features of the process to the attention of metallurgists for the purpose of furnishing information to and receiving comments from interested parties with the ultimate hope that the process will be a commercial success."

Part one of a bulletin from the U.S. Bureau of Mines discussing oil and gas field waste prevention, and policies on field operation. According to the introduction, "Part I of this manual points out types of oil and gas wastes and suggest, in detail or by reference, the most practical and effective methods in current practice for stopping these wastes. Throughout Part I the department's operating policy is given, with interpretations of the 'Operating Regulations' for enforcing every practical measure of conservation" (p. 1).

From Introduction: "The analyses given in this bulletin are of samples of delivered coal. This bulletin gives the results of analyses of samples delivered coal collected from July 1, 1915 to January 1, 1922."

From Scope of the Work and Findings: "The work was divided into two parts, namely, field work and laboratory investigations. The most interesting and important of the laboratory investigations. The most interesting and important of the laboratory findings were: (1) The presence of hydrogen sulphide (H2S) in the gases and vapors from light Mexican crude; (2) the extreme toxicity of H2S; (3) the absence of arsine, stibine, phosgene, hydrocyanic acid, and other toxic substances; (4) treatment recommended for poisoning by H2S; (5) use and limitations of oxygen breathing apparatus, hose masks, and gas masks."

From Introduction: "In the following pages the writer has endeavored to give an account of the many methods, advantages, and disadvantages of preparing and burning powdered coal."

Part two of a bulletin from the U.S. Bureau of Mines discussing oil and gas field waste prevention, and policies on field operation. According to the introduction (from part 1), "Part II comprises the revised 'Operating Regulations' which supersede all previous regulations and will govern future operations on public lands" (p. 1).

From Introduction: "The officials of the North Butte mine we engage in making a study of ventilation problems before the coming of the investigators, so that opportunity was given to work with those officials for several months. This bulletin is a result of studies made from the data collected during the two and one-half years of study and observation above outlined."

The Journal contains the proceedings of the Senate of Texas including legislation, reports, discussions, votes, and points-of-order. Some volumes also contain supplementary materials. The index begins on page 1531.

This volume of the Journal contains the full documentation for the second called session of the Senate of Texas including proceedings, authors of Senate bills, as well as the history of Senate bills and resolutions. The index begins on page 619.

This volume of the Journal contains the full documentation for the third called session of the Senate of Texas including proceedings, authors of Senate bills, as well as the history of Senate bills and resolutions. The index begins on page 619.

Note presenting methods for ascertaining the value of n in Euler's simplified formula, which can be used for the compressive strength of tapered airplane struts, by estimating from curves and by calculation.

The Journal contains the proceedings of the House of Representatives of Texas including legislation, reports, discussions, votes, and points-of-order. Some volumes also contain supplementary materials. The index begins on page 547.

The Journal contains the proceedings of the House of Representatives of Texas including legislation, reports, discussions, votes, and points-of-order. Some volumes also contain supplementary materials. The index begins on page 1767.

Report issued by the U.S. Bureau of Mines on a study of the causes of employee accidents in California oil fields during the year of 1921 - 1922. This investigation was conducted to develop safety procedures and future accident prevention. This report includes tables.

Report issued by the U.S. Bureau of Mines on a survey of the New Albany oil-shale deposits in Indiana. The experimental procedures for surveying and sampling these shale deposits are presented in detail. This report includes tables, and graphs.