Scientific paper issued by the Bureau of Standards over studies on thermal expansion. Expansivity tests are conducted on many different insulating materials. The results of the tests are discussed. This paper includes tables, photographs, and illustrations.

Mixtures of gasoline and alcohol when used in internal combustion engines designed for gasoline have been found to possess the advantage of alcohol in withstanding high compression without "knock" while retaining advantages of gasoline with regard to starting characteristics. Test of such fuels for maximum power-producing ability and fuel economy at various rates of consumption are thus of practical importance, with especial reference to high-compression engine development. This report discusses the results of tests which compares the performance of alcogas with x gasoline (export grade) as a standard.

Technical paper issued by the Bureau of Standards over studies conducted on the quality of sole leather. As stated in the introduction, "the development of a simple method for quickly determining the durability of sole leather seemed desirable, and this paper discusses a laboratory apparatus designed for this purpose and also presents the results of tests made to date to determine the relative wear of leather from different parts of the hide" (p. 3). This paper includes illustrations, and photographs.

Report prepared by Warren Worley, a geologist, concerning the topography, drainage, geology, and structural features of land purchased by K.K. and K.B. Legett.

Report prepared by Warren Worley, a geologist, concerning the topography, drainage, geology, and structural features of land purchased by K.K. and K.B. Legett.

Final page of a report prepared by Warren S. Worley concerning development of oil wells on the land of K.K. Legett and K.B. Legett.

Final page of a report on acreage in Callahan and Taylor Counties in Texas, including information about oil sands, wagon roads, and fuel supplies. The report was submitted by a geologist to K.K. Legett and K.B. Legett.

Technical paper issued by the Bureau of Mines over microscopy of pulverized ores. As stated in the introduction, "this paper, which deals with the study of pulverized ores and the use of the camera lucida in such work, discusses an investigation undertaken at the Seattle and the Golden mining experiment stations of the Bureau of Mines" (p. 3). This paper includes tables, illustrations, and photographs.

Report issued by the Bureau of Mines over the eleven experiment stations established near important mining fields. The work done by the stations are discussed. This report includes tables, illustrations, and photographs.

Report discussing explosives research requested by the U.S. Army and Navy and conducted by the Bureau of Mines.

Scientific paper issued by the Bureau of Standards over studies conducted on the effects of temperature change on alloy steel. The experimental methods used and the results are presented and discussed. This paper includes tables, photographs, and illustrations.

Scientific paper issued by the Bureau of Standards over the detection of combustible gases in the air. The design and development of new detection equipment is discussed. This paper includes tables, photographs, and illustrations.

Technical paper issued by the Bureau of Standards over studies conducted on the development of protective eye wear. The methods and equipment used are presented and discussed. This paper includes tables, and illustrations.

Report issued by the Bureau of Mines over studies conducted on petroleum and helium production. The results of the studies are presented and discussed.

Report discussing petroleum investigations and the production of helium by the Bureau of Mines during World War I.

A handwritten document addressed to the Second Quarterly Conference of St. Paul's Church. The document contains financial information, a report on growth, information on new members and members who have left, and future plans.

Technical paper issued by the Bureau of Mines over the accounting for small metal mines. As stated in the introduction, "this report outlines methods of cost keeping suitable for metal mines of small or moderate size and presents various forms and cost sheets that have been found useful in actual practice" (p. 5). This paper includes tables, and illustrations.

Technical paper issued by the Bureau of Mines over the use of gas traps at oil wells. Different types of traps are presented and discussed. This paper includes photographs, and illustrations.

A handwritten document addressed to the members of the First Quarterly Conference (presumably of St. Paul's Church), reporting greater than normal church attendance and with the spiritual condition of the church described as unusually good. The document also expresses a need for a deep awakening and a new sense of God in Christ, and lists the names of 45 people who have recently been added to the church.

Report describing a newly discovered type of oyster in the Texas Cretaceous stratigraphical zone.

Bulletin issued by the U.S. Bureau of Mines: "This publication is devoted exclusively to a review and abstracts of decisions based on the laws governing the rights and duties of mine owners, operators, miners, and persons trafficking in all kinds of mining properties. It includes abstracts of current decisions of all the Federal and State courts of last resort on questions relating to the mining industries" (Bulletin 61, p. 9).

Bulletin issued by the U.S. Bureau of Mines: "This publication is devoted exclusively to a review and abstracts of decisions based on the laws governing the rights and duties of mine owners, operators, miners, and persons trafficking in all kinds of mining properties. It includes abstracts of current decisions of all the Federal and State courts of last resort on questions relating to the mining industries" (Bulletin 61, p. 9).

Bulletin issued by the U.S. Bureau of Mines: "This publication is devoted exclusively to a review and abstracts of decisions based on the laws governing the rights and duties of mine owners, operators, miners, and persons trafficking in all kinds of mining properties. It includes abstracts of current decisions of all the Federal and State courts of last resort on questions relating to the mining industries" (Bulletin 61, p. 9).

Report issued by the Bureau of Mines over mining decisions made between January and May of 1918. Details of the decisions are presented and discussed.