Vol. VIII, pp. 9-40, pls. I-VIII June 3, 1893 



PROCEEDINGS 



OF THB 



BIOLOGICAL SOCIETY OF WASHINGTON. 



PALEONTOLOGY OF THE CEETAOEOUS 

 FOKMATIONS OF TEXAS 



INYERTEBRATE PALEONTOLOGY OF 

 THE TRINITY DIYISION 



ROBERT T. HILL • \ 



WASHINGTON, I). C. 

 Published ijy the Biological Society or Washington 



