The purpose of this study is "to identify significant issues affecting water quality" within the Trinity River watershed, located in the eastern half of Texas, "and to provide sufficient information for the Commission, river authorities, and other local government bodies to take appropriate corrective action necessary to maintain and improve the quality of [the] state's water resources" (p. [1]).

Document describes the origins and history of the Soil Survey with an emphasis on the time periods of 1899-1912, 1912-1920, 1920-1933, and 1933-1952. "For each of the four chronological periods, a brief introductory chapter describes the general political and administrative environment then prevailing, and a summary of the progress of the Soil Survey achieved under such an environment." (p. 36) Also provides information on early soil sampling, typing, mapping, and interpretation. Also tells about the coordination of the National Cooperative Soil Survey and developments in the National Cooperative Soil Survey from 1952-1957.