Accompanied by 4 foldout plates -- Plate 51 : Creole Bluff near Montgomery, Grant Parish, Louisiana. Plate 53 : Subsurface structure of Ellenburger units in north-central Texas. Plate 54 : Subsurface correlation of Ellenburger units in north-central Texas. Plate 55 : Cross section of the southern Quitman Mountains in Texas. University of Texas bulletin ; no. 3945, January 1, 1939
1125 p.  leaves of plates : ill., maps, plates ; 23 cm.