Report providing information about the ongoing city planning for Dallas, Texas that started with the Kessler Plan in 1911. This report includes tables and charts showing Dallas' population history and expected growth up until approximately 1970; the report looks at factors that could effect the distribution of population, where the future growth may occur, etc.

In an attempt to follow the time rate of change of the processes in turbulent flows by quantitative measurements the measurement of the pressure is often beset with insuperable difficulties for the reason that the speeds and hence the pressures to be measured are often very small. On the other hand, the measurement of very small pressures requires, at least, considerable time, so that the follow-up of periodically varying processes is as goad as impossible. In order to obviate these difficulties a method, suggested by Prof. Prandtl, has been developed by which the pressure distribution is simply determined from the photographic flow picture.

Report providing information about the ongoing city planning for Dallas, Texas that started with the Kessler Plan in 1911. It is presented in two parts: the character of the city (background information on the history, geography, economy, employment, zoning, etc.) and the scope of the city plan, which has specific details for a plan to improve land use, water supplies, transportation, recreational facilities, and other aspects of city administration.

Abstract: A brief sketch of the stratigraphy of the Miocene of Virginia and the Miocene and Pliocene of North Carolina was prepared by Dr. W. C. Mansfield before his death in July 1939. His purpose was "to provide a background of formational nomenclature" for the taxonomic treatment of the molluscan faunas. The physical nature and distribution of the upper Tertiary formations within those States are discussed, characteristic sections given, and diagnostic molluscan species listed. Part 1 of the systematic report covers the Pelecypoda. A monographic treatment is not attempted, but 132 previously known species are considered, and 62 new species and subspecies are described and figured.