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.

In December, 1941, work of Work Projects Administration project No. 49036 was inaugurated to investigate the gypsum deposits of Gillespie County. Core drilling was undertaken but proved unsatisfactory and was discontinued. The WPA unit was used for clearing debris out of gypsum-bearing caverns and sinks so that the thickness of the gypsum could be measured, elevation of the bottom of the gypsum obtained, and samples of the gypsum taken for analysis. This type of work yielded information not otherwise available. The supervision of the WPA unit was under the able direction of Mr. Robert W. Mathis, who also obtained some of the elevations used in this report. The writer was assisted by Mr. Lincoln E. Warren.