Document listing the names, geographical or business affiliation, and dates of visitors entertained by a member of the Kempner family.

From Abstract: "This bulletin traces the development of high-pressure, coal and tar hydrogenation technology, based on intensive review of the pertinent literature. The bulletin was written as a part of the Bureau of Mines research program on synthetic liquid fuels. It covers the history and economics of the process; the chemical aspect of hydrogenation of coal, tar, and middle oil; the engineer aspect of converting coal and tar to liquid fuels, principally gasoline; and the equipment of the process."

Immediately after the outbreak of the World War, Great Britain, France and Japan cut the German submarine cables which were situated in the different oceans of the world. The study of the submarine cables during the World War and its aftermath is a complex problem. To understand the post-war negotiations, previous international agreements, treaties and the ownership, operation and financing of the cables must be understood.

From Abstract: "The Laboratory has made a survey of fallout operations in the various countries of the world. The source of information has largely been the reports submitted to UNSCEAR forwarding data for their consideration. The abstracts are given in order of type of operation as shown in the table of contents."