The following chapters attempt to show the work that has been done toward restoration, preservation, and marking of historic spots in Texas by patriotic societies, individuals, civic groups, the Centennial Commission, and other agencies. It has not been the purpose of the writer to go into details regarding every one of the sites and individual markers, especially in instances in which several of the same type were erected. In such cases a general description of the markers is given, together with a general idea of the type of inscription that appears on them. Since so much was done by the Centennial Commission, more attention has been devoted to its activities than to those of other organizations unable to carry out such an extensive program...in many instances it has been necessary to rely upon information from magazines, newspapers, Chamber of Commerce bulletins, pamphlets, and personal letters, because of lack of recorded materials. The information obtained, however, has been weighed and carefully compared with other sources on the same subject until its authenticity is assured.

This thesis is a study of the history of the education of Spanish-speaking people in Texas. The study covers a long period of time, from the middle of the seventeenth century to the present time.

The study of the economic development of the Rio Grande Plain has been divided into the following seven chapters: (1) Physical Aspects of the Rio Grande Plain, (2) Grazing, (3) Development of Farming, (4) Development of Transportation, (5) Growth of Major Urban Centers, (6) Development of Natural Resources, and (7) Present Trends. In each chapter except Chapters I and VII, effort has been made to locate the origin of that particular industry and trace its development. In order to understand the development in the raising of livestock, farming, transportation, natural resources, and the growth of major cities of the region, it would be well to understand the physical aspects of the region.