THE LIGNITIC STAGE. 



BY 



Gilbert D. Harris. 



PART I. 



STRATIGRAPY and PAI,EONTOI,OGY (PBI/BCY- 



PODA.) 



SUMMARY OF CONTENTS. 



Preliminary Considerations. 



Page. 



Divisions of the Lignitic 4 



Aim and scope of this work...... 5 



Collection of fossils, field notes etc., on 

 which this work is based : The Cornell Uni- 

 versity expeditio7i of i8g^ ; the Cor^iell University 

 expedition of i8p6 ; T. H.Aldrich's collections of 

 fossils and drawings ; the atithors zvorks and field 

 notes on this stage ifi A rkansas and Alabama 5-6 



SBCTION I. STRATIGRAPHY 6-36 



Texas : Rio Grande, Colorado River, Brazos 

 River, East of Brazos River 6-10 



