on. OLDHAM 



209 



Page 



Oil ill Appaliichian Held, Orif?in of 38, O'jS 



Cretaceous shales and sandstones 28, 678 



Ohio, The Clinton sand as a source of; J. A. Bownockcr 22,67,736 



Washington, Evidence of 28, 678 



— , Late theories of origin of 28, 727 



— localities, Other undeveloped Mexican 24, 273 



— pools in regions of monoclinal structure. Notes on the geological rela- 



tions of ; Frederick G. Clapp 22, 67, 737 



of southern Oklahoma and northern Texas ; J. N. Gardner 26, 102 



— recovery 28, 157 



— shales. Productivity of 28, 157 



, Regional alteration of ; David White 26, 101 



— , Statistics of 28, 640 



— strata, Correlation of 28, 629 



of Gulf coast of Mexico, Age of 24, 255 



— supr)ly of the world 28, 603 



— territory, Extent of northeastern Mcxicc. 24, 269 



— , Theories of origin of 28, 157 



— wells of Mexico, Production of Ebaiio jiiid Casiaiio 24,266 



• — . See also petroleum. 



Ojo Alamo beds correlated with the Judith Uiver 25, 380 



, Fossils of the 25, 379-380 



Oken, Lorewz, cited on epipterygoid 28, 981 



Oklahoma, Bouldei- beds of the Caney shale at Talihiiui 23. 50, 457-462 



— , Chimney Hill formation of 25, 75 



— , Fossil fishes from the Ciiney shale of 24, 119 



— , Healdton oil field of 28, 159 



— , Natural bridge near McAlester 21, 327 



— ■ — bridges in western 21, 3.33 



— , Oil fields of 28, 569, 693 



pools of southern 26, 102 



— Pleistocene fauna ; E. L. Troxell 28, 212 



— , Progress geologic map of 21. 29, 777 



Okoboji, Location of lake 21, 122 



Old Red Sandstone, Description of 27, 302 



, Environment of fishes of 27, 399 



, Faunal changes in 27, 401 



— , Fluviatile origin of 27, 39 



of Shetland Islands 27, 378 



— , Origin of 27, 345 



, Prevailing views of origin of 27, 349 



Oldest fossils ; Andrew C. Lawson 24, 97 



Oldroyd, Ida S. ; Relationships of the recent and fossil invertebrate 



faunas on the west side of the Isthmus of Panama to those on the 



east side 29, 162 



Oldroyd, T. S. ; MoUuscan faunas from Deadmans Island 27, 173 



Oldham, D. W., quoted on use of seismograph 21, 386 



, Time of Yakutat Bay earthquake computed from seismograms by. . 21, 386 



XIV — Bull. Gbol. Soc. Am. 



