Although I have been away from Texas eight years, I have been following with interest the discussion in this Bulletin of the nomenclature of the two formations lying between the Oakville and Fayette in south Texas. This discussion began with a proposal by Julia Gardner and A. C. Trowbridge1 of a new name, Yeager clay, for Dumble’s2 “Frio clay,” as it was restricted and redefined by me.3 They also proposed to use Dumble’s name, “Frio,” for the overlying pyroclastic beds to which I had applied the name, “Gueydan.” The committee appointed by the San Antonio Geological Society...

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