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 Puerto Rico Station. Name and subject indexes start on page 913.

This report presents performance results of air cooled and water-cooled engines. The results obtained were sufficiently promising to warrant further investigation with fuel injection and spark ignition, with the same arrangement of inlet ports and exhaust valves at the bottom of the cylinder and the exhaust gases discharged through two poppet valves in the cylinder head. The displacement of the engine was 118 cubic inches. Optimum performance was obtained with the inlet air directed into the cylinder at an angle of 20 degrees to the radial.

Report issued by the Bureau of Mines discussing the mechanical equipment used in oil and gas wells of the Oklahoma City field. As stated in the introduction, "this paper presents the results of a study devoted chiefly to new equipment that has been developed to meet the requirements of drilling and producing operations in the Oklahoma City field and that has been accepted by drilling contractors and operators" (p. 1). This report includes tables, illustrations, and photographs.

Volume provides a summary of the progress of each agricultural experiment station. Also includes statistics and selected studies.

Report issued by the U.S. Bureau of Mines on the studies done on the Zwolle oil field wells. History of the oil field, and the results of acid treatment to the wells are presented. This report includes tables, graphs, maps, and illustrations.

This bulletin discusses how farmers can improve their environment for wild life and game animals. Farmers should provide cover for wild life, ensure an adequate and continuous food supply, and take measures to protect wild life from farm operations, birds of prey, cats and dogs, diseases, etc.

Report includes the National Advisory Committee for Aeronautics letter of submittal to the President, Congressional report, summaries of the committee's activities and research accomplished, bibliographies, and financial report.

"Growing food for family-living purposes in connection with enough outside work to provide the family with the cash for necessary farm and family expenses is a combination that many families now want to develop.... This kind of farming has often been called subsistence farming and a farm of this kind a subsistence homestead. This part-time farming has certain problems of its own that are somewhat different from the usual farming problems. The family has to think of the quantity and variety of products it needs rather than of what the markets demand. Those who are inexperienced often overestimate the savings made possible by this way of living, and they often underestimate the costs in the way of the labor and cash necessary in such part-time farming.... This bulletin deals chiefly with the economic problems that will be met by those people who are planning to combine part-time farming and wage earning." -- p. 1-2

"The investigation of the effect of mass distribution on the spinning of airplanes initiated with tests on the NY-1 airplane has been continued by tests on another airplane in order to increase the scope of the information and to observe particularly the behavior of an airplane that shows considerable change in sideslip angle for its various conditions of spinning. The XN2Y-1 naval training biplane was used for the present tests in which changes of ballast along the longitudinal and lateral axes and changes of aileron, stabilizer, and elevator settings were made. The effects of these changes on the steady spin were measured in flight' (p. 185).

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

This document reviews the Air show held in Paris in 1934. It includes charts and pictures of the aircraft which were from all parts of Europe.

Abstract: By grinding minerals under water it has been found that they yield relative and reproducible measurements of the hydrogenion concentration resulting from their hydrolysis. Many silicate minerals and two glasses have been studied in this way by a colorimetric method of determining hydrogen-ion concentration, and some of them have been studied more quantitatively by means of the hydrogen electrode. The results of these tests are a rough index of the weathering qualities of different silicate minerals. The effect of silicate minerals on underground waters and upon geochemical changes is discussed.

Soil survey of nine Texas counties lying west of the Pecos River. Included are Brewster, Culberson, El Paso, Hudspeth, Jeff Davis, Pecos, Presidio, Reeves, and Terrell Counties. Text describes the area, natural vegetation, settlement and development, climate, agriculture, soils and crops, agricultural industries and methods of soil management, alkali, irrigation, and soil erosion and rain-water conservation of these counties.

This report presents the tests results of a series of tests made of the sprays from 14 fuel injection nozzles of 9 different types, the sprays being injected into air at atmospheric density and at 6 and 14 times atmospheric density. High-speed spark photographs of the sprays from each nozzle at each air density were taken at the rate of 2,000 per second, and from them were obtained the dimensions of the sprays and the rates of spray-tip penetration. The sprays were also injected against plasticine targets placed at different distances from the nozzles, and the impressions made in the plasticine were used as an indication of the distribution of the fuel within the spray. Cross-sectional sketches of the different types of sprays are given showing the relative sizes of the spray cores and envelopes. The characteristics of the sprays are compared and discussed with respect to their application to various types of engines.

Biweekly, comprehensive compilation of decisions, reports, public notices, and other documents of the U.S. Federal Communications Commission.

Text describes the climate, agriculture, soils, and crops of Potter County, Texas.

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 603.

Text of laws governing fishing and oyster culture, as well as regulation by the Game, Fish, and Oyster Commission.

Report issued by the U.S. Bureau of Mines discussing the "occurrence, milling, and metallurgy of manganese in the United States" (p. 1). Different properties and compounds of manganese are also discussed. This report includes a map, tables, illustrations, and photographs.

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 273.

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 463.

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 357.

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 to the third called session begins on page 485 and on page 371 for the fourth called session.

From Schedules, Approvals, and Approval Plates: " This schedule has been revised from time to time to conform with information gained from testing a large variety of equipment and to bring the requirements in line with new developments in the art. As the approval plate on a machine evidences compliance with the safety requirements established by the Bureau the user, in fairness to the Bureau and the manufacturer, should not operate such a machine if it has been changed from the design approved without authority or if it has become unsafe through neglect or accident. The machine should be in proper condition, or the approval plate should be removed and destroyed."