Includes 13 figures. Accompanied by 15 plates -- Plate 1 : Map showing locations of stations where Midway outcrops were sampled, Table : Distribution of Midway species of foraminifera from stations 1 to 85 along the belt of outcrop of the formation in Texas. Plate 2 : Figures of a few Navarro foraminifera. Plates 3-15 : Figures of Midway foraminifera. University of Texas bulletin. no. 2644 : Nov. 22, 1926
206 p. illus., xv pl. (incl. fold. map) fold. tab. 23 cm.