445-2256-1019-lm 



University of Texas Bulletin 



No. 1840: July 15, 1918 



Species of Turritella from the Buda and 

 Georgetown Limestones of Texas 



BY 

 Alva Christine Ellisor 



ci>** 



PUBLISHED BY THE UNIVERSITY SIX TIMES A MONTH, AND ENTERED AS 



SECOND-GLASS MATTER AT THE POSTOFFICE AT AUSTIN. TEXAS, 



UNDER THE ACT OF AUGUST 24, 1912 



