CONTENTS, 



Chap. I. Definition of Area included in the Region W. H. von Streeruwitz. 



Chap. II. Descriptive Geology W. H. von Streeruwitz. 



Chap. IIJ. Mineral Resources and Irrigation. ■ W. H. von Streeruwitz. 



Chap. IV. Minerals of Trans-Pecos Texas W. H. von Streeruwitz. 



Chap. V. The Cretaceous Deposits J. A. Taff. 



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