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

Map displays soil types along with creeks, rivers, locks and dams, levees, gravel pits, roads, bridges, ferries, railroads, airfields, towns, schools, orphans' homes, churches, and stores. Includes legend and symbols.

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

Text describes the area, climate, agriculture, and soils of Tarrant County, Texas.

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 a summary of the progress of each agricultural experiment station. Also includes statistics, discussions of foreign investigations, and selected studies.

Describes the trend toward establishing planned recreation areas in rural communities, and the economic and social benefits they provide to farmers.

From Introduction: "Coal dust as an agent of widespread explosions had been under suspicion, and watering to allay the dust was recommended by some mining engineers but the watering of coal-mine dust was adopted in comparatively few mines of the United States and Great Britain, and had not been introduced widely in any country except Germany. Rock dusting, another method of preventing explosions of coal dust, was early tested with success by the Bureau of Mines in its first gallery at Pittsburgh and, beginning in 1911, at the experimental mine, Bruceton, Pa."

Report compiled by the U.S. Bureau of Mines including statistics on fatalities in coal mines located in the United States as well as data regarding the various operations (e.g., number of miners employed and average production). The information is organized into tables for comparison and the text draws some overall conclusions in the summary.

From Introduction: "On account of extensive folding and faulting of the coal measures, mining in Washington presents many difficulties; therefore a description of the methods employed at some of the mines may be useful in planning operations in other regions, and is presented in this bulletin."

Report issued by the U.S. Bureau of Mines on experiments conducted to improve the cab conditions of freight engines. The temperature, gas content, and other properties are presented. This report includes tables, graphs, and illustrations.

Report discussing the Mexican bean beetle, which is the most serious insect enemy of beans in parts of the United States. Although it has long been present in the southwestern United States, it has recently spread to the Southeast and destroyed much of the bean crop there. This bulletin describes the beetle's life cycle and different control measures, including spraying and dusting with insecticides.

Report discussing the newly-discovered rosette disease of wheat, the cause of which is still unknown. Discussion includes the disease's geographic distribution, affected crops, symptoms, and methods of control.

"This bulletin is primarily a story of the organization and management of successful 80-acre farms in central Indiana and adjacent areas which are following the type of farming that prevails in that part of the country.... Some of the leading principles of good farm organization and management on 80-acre farms are illustrated by the facts brought out regarding what the successful farmers on 80-acre farms have accomplished, not in a single year but over a series of years. The bulletin sets before the 80-acre farmers who are following the prevailing type of farming standards which some farmers have reached and which are believed to be within the reach of a great many other 80-acre farmers in central Indiana and adjacent areas." -- p. ii

Report describing the types of wheat known as emmer and spelt, which are not widely grown in the United States and differ from other types of wheat in that most of the kernel is not removed from the chaff during threshing. The history, distribution, adaptation, varieties, culture, harvesting and threshing, and uses of both emmer and spelt are discussed.

Revised edition. "Corn yields per acre in the United States could be doubled within a few years, and this could be accomplished without increase in work or expense.... The lines of improvement that will most easily and quickly double the present production per acre are as follow: (1) Improvement in the quality of seed planted; (2) improvement in the condition of the soil; (3) improvement in methods of cultivation." -- p. 3-4

Revised edition. "This bulletin explains the computation of rations for horses, suggests certain feed combinations which approximately meet the needs of horses under differing conditions, and reviews such factors of feeding as tend to make the horse more efficient." -- p. ii

Revised edition. "Fresh vegetables for an average family may be grown upon a large back yard or city lot.... Thousands of acres of idle land that may be used for gardens are still available within the boundaries of our large cities. Some of the problems that confront the city gardener are more difficult than those connected with the farm garden, and it is the object of this bulletin to discuss these problems from a practical standpoint." -- p. 2. Soil preparation, tools, seeding, watering, diseases and pests, and space issues are all discussed and brief descriptions of several vegetables are given.

Revised editions. "The Hessian fly undoubtedly is the most injurious insect enemy of wheat in the United States. During the last 37 years at least seven general outbreaks of this pest have occurred in the States east of the Mississippi River. These invasions have averaged about one every five years, although they have occurred at rather irregular intervals. The last one was very destructive and was at its height during the period from 1914 to 1916.... A large proportion of such losses is preventable, although no remedy is known which will destroy the pest or save the crop once it has become thoroughly infested. Control and preventive measures are described on page 13 and summarized on page 16." -- p. 2

Revised edition. "The slender, milk-white grub or 'maggot' of the rice water-weevil lives on the roots of rice, and whether it feeds little or much upon them, kills practically all the roots that it attacks. This pruning of the roots weakens the rice plant and often kills it. Another enemy of this staple crop of the South is the stink bug, which sucks the juices from the soft grains of rice. The fall army worm, when it becomes abundant, works great havoc in its attack upon young rice. Other insects also, such as the rice stalk-borer, infest the rice field, and the rice planter must constantly guard his crop against them. This bulletin tells when to plant, and when to flood and drain the fields in order to reduce the numbers of these pests, and recommends other measures that will prevent attack by the many minor species of insects which normally breed in and near rice fields." -- p. ii

"A definite record of expenditures and receipts is one of the greatest needs of many poultry keepers. This bulletin gives a simple systems of keeping poultry accounts adapted either for a small flock or for a large poultry farm. Combined with this system of accounting is a detailed statement of expenditures and receipts and an inventory of the necessary equipment for operating a 1,500-hen commercial poultry farm. The records advised are simple, consisting of a monthly statement sheet, a yearly summary sheet, an inventory sheet, a balance sheet, and a daily egg record." -- p. ii

Scientific paper issued by the Bureau of Standards over the mutual inductance of two coaxial circles. As stated in the abstract, "a number of examples are given to show the methods of computation by the different formulas, tables, and charts" (p. 541). This paper includes tables, and illustrations.

Scientific paper issued by the Bureau of Standards over ultra-radio frequencies. As stated in the abstract, "this paper furnishes the theoretical background for the method of frequency standardization employing short standing waves on parallel wires" (p. 487). This paper includes tables, and illustrations.