Limestone outcrops around the Palestine salt dome afford a source of this rock in a part of the State in which large deposits of this material are otherwise lacking. The rock occurs as brecciated blocks of Cretaceous chalks and limestones which have been brought to the surface from a depth of several thousand feet by the Palestine salt dome uplift.

A geologic map and a bulletin describing the geology and mineral deposits of Gillespie County, Texas, is being prepared. Awaiting completion of this map and bulletin, abbreviated mimeographed circulars describing the more important mineral deposits will be issued.

The purpose of this report is to give results of investigations made in Polk and adjoining counties. Rice sand located on property owned by the Eden-Birch Lumber Company, approximately 1.5 miles west of Carmona, northern Polk County, and other deposits in Polk, Trinity, Tyler, and Walker Counties were examined. Volcanic ash, bentonitic clays, and artesian water were encountered while mapping the Eden-Birch locality, and a brief discussion of each of these is also included in the report.