Physical Characteristics of Coal Mines in Texas for 1914. (University of Texas Scientific Series Bulletin)  
  Source: Wm. B. Phillips and S. H. Worrell, The Fuels Used in Texas. Bulletin of the University of Texas No. 307, Scientific Series No. 35. December 22, 1913.  

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Information and images were digitized and proofread from the original source documents by Murry Hammond. Contact Murry for all corrections, additions, and contributions of new material.