Accompanied by 8 foldout plates : Plate 1 : Topographical and geological map of Terrell County. Plate 2 : Topographical and geological map of Terrell County. Plate 2A : Cliff of the Edwards limestone in the east bluff of Mangin Creek, about three miles above the junction of the Mangin and San Francisco Creeks. Plate 2B : View of west bluff of Indian Creek, showing in the distance the contact between the Buda and the Eagle Ford. Plate 3 : Bluff of Edwards limestone 500 feet high. Plate 4 : Corrasion and solution in a canyon in the Edwards limestone at the junction of Mangin and San Francisco creeks. Plate 5 : Wall of the Eagle Ford formation, 310 feet high. Plate 6 : Small fault in the Edwards limestone in Pitman Canyon, 11 miles south of Sanderson. Plate 7 : Ripple marks and so-called"fucoid"markings, which appear in this case, probably are trails from animals transversing the sand. Plate 8 : A flag of sandy calcareous rock, showing imbedded tests of Nodosaria texana, which have been etched out by weathering. University of Texas bulletin. no. 1819 : April 1, 1918
57 p., 1 l., VIII pl. (incl. fold. map) diagr. 23 cm.