| Government Printing Ofice, Washington, D.C., 2 0 4 0 2 - Price $ 2 . 0 0 GEOLOGIC STUDIES Structural geology...- Tectonic movement in the Grapevine area, Kern County, Calif., by B. E. Lofgren - _ _ _ - - - _ _ _ -...extrusive volcanic rocks in Middle Park, Grand County, Colo., by G. A. Izett - - - - - _ _ - - - - _...- - _ - - - - - - - - - - - Oketaella earglei, a new fusulinid species, from the Adams Branch Limestone...Graford Formation of Late Pennsylvanian age, Brown County, Texas, by D. A. Myers . . . . . . . . . . . . |
