744 



BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



Page 



Oil pools in regions of monoclinal struc- 

 ture. Notes on ttie geological rela- 

 tions of ; Frederick G. Clapp. (Ab- 

 stract.) 67, 737 



Oldham, K. D. ; Report on the great 

 (Assam) earthquake of 1897, Ref- 

 erence to 174 



Oligocene and Eocene of the Wind 

 River and Big Horn basins ; Wil- 

 liam J. Sinclair and Walter Gran- 

 ger. (Abstract.) 63, 722 



Omaha, Nebraska, and Council Bluffs, 

 Iowa, Pleistocene of the vicinity of. 



65, 730 



Ordovician and Silurian polar faunas ; 



R. S. Bassler 92 



Ores at the Veta Rica mine, Mexico, 

 Occurrence of silver, copper, and 

 lead; Frank R. Van Horn. (Ab- 

 stract.) 67, 738 



OsBORN, H. F. ; "Mutations" of Waagen 

 and "Mutations" of De Vries, or 

 rectigradations of Osborn com- 

 pared (read by title) 96 



OsTRACODA, The stratigraphic signifi- 

 cance of I R. S. Bassler 94, 275 



Ottawa Valley, Chazy formation in. 62, 719 



Paleogeography, Bearing of the Paleo- 

 zoic Bryozoa on 93, 252 



Paleozoic arthropods. The relation to 



the strandline of 94, 279 



— Bryozoa, The relations to paleogeog- 



raphyof 93, 252 



— continental seas. Extent of 304 



, Oscillatory character of 320 



— faunas, On the derivation of 96 



— nomenclature of stratigraphic units, 



Suggestions concerning 384 



— rocks (early) of New York, Proposed 



modifications in the nomenclature 



of the ; paper by H. P. Gushing. . . 62 



— stratigraphic column. Development of 



the American 375 



— system of North America, Revision 



of (part II) ; Edward O. Ulrich. . . 



63, 289-680 



— systems. Criteria and principles of 



stratigraphic classification in re- 

 vision of the 394 



, Diastrophic criteria of the 394 



, Natural basis of geologic time 



divisions of 292 



, Paleontologic criteria of the. 481-505 



, Present instability in strati- 

 graphic classification of 289 



, Principles of stratigraphic corre- 

 lations of the 505-574 



, Revision of the 289-680 



, Stratigraphic taxonomy of the . . 



574-680 



, Structural, gradational, and litho- 



logic criteria of the 448-479 



— time. Estimated length of 295 



, Recurrence of species and fauna 



in 298 



^ "Shifting of faunas" and 295 



Paleontological Society, Auditors ap- 

 pointed 89 



, Correspondents nominated for 



election to the 88 



, Election of officers, correspond- 

 ents, and list of members 89 



, Members deceased, 1910 88, 101 



^ Members-elect, December 31, 1910 103 



, Members proposed for election to 



fellowship in the Geological So- 

 ciety of America by the 88 



, Memorial addresses for deceased 



members 91 • 



Page 

 Paleontological Society, Officers, mem- 

 bers, and correspondents, 1911 .... 97 



, Plan of publication of papers of. 86 



, Proceedings of 85 



— — , Register of the Pittsburgh Meet- 



ing, 1910 96 



, Treasurer's report 89 



Passarge, Siegfried ; Die Kalihari, 



Reference to 162 



Pattox, H. B., chairman Petrologic, 



Mineralogic, and Economic Section. 67 



Pegmatites, The gem-bearing of the 



world ; George F. Kunz 67 



Penhallow, David Pearce, Memoir of 

 (with bibliography and portrait), 

 by Alfred E. Barlow 15 



I'ennsylvantan (Lower) of northeast- 

 ern Oklahoma, Stratigraphy of. 

 (Abstract.) 63, 720 



Permian of New Mexico, A complete 

 skeleton of a new group of large 

 reptiles from the 95 



Texas, A mounted skeleton of 



Varanosaurus from the 95 



Peterson, O. A. ; A mounted skeleton 

 of Diceratherium cooki Peterson in 

 the Carnegie Museum (extempore). 95 



— ; A new camel from the Miocene of 



Nebraska (extempore) 95 



Petrologic, Mineralogic, and Economic 



Section, Organization of the 67 



Pfaefeers, in the Tyrol, Vadose origin 



of the mineral waters of 120 



Phillips, F. C. ; Gases from Yellow- 

 stone thermal springs. Analysis by. 117 



Phillips, John, Reference to work on 



joint systems of 167 



Photograph Committee, Report of . . . . 52 



Physiographic and Glacial Section, 



Meeting of 64 



PiRSSON, L. V. ; Crustal warping in the 

 Temagami - Temiskaming district, 

 Ontario, Reference to 148 



Pittsburgh, Pennsylvania, Proceedings 

 of the Twenty-third Annual Meet- 

 ing of the Geological Society of 

 America, held December 27, 28, and 

 29, 1910, at 1 



— , Sketch of the local geology of the 

 city of (abstract) ; Percy E, Ray- 

 mond 63, 721 



Plains formations. Explanations of.... 690 



Pleistocene of the vicinity of Omaha, 

 Nebraska, and Council Bluffs, Iowa 

 (abstract) ; B. Shimek 65, 730 



Sioux Falls, South Da- 

 kota (abstract); B. Shimek.... 65,730 



— igneous rocks and thermal waters . . . 106 

 PoMPERAUG Valley system of Connecti- 

 cut, Fracture fields in 155, 167 



. The Newark system of the. Ref- 

 erence to 131 



Popular Science Monthly, Conference 

 papers of the First Annual Meet- 

 ing of the Paleontological Society 

 published in the 87 



Pre-Cambrian (The) of southeastern 

 Ontario, Paper by AVillet G. Miller 

 and Cyril W. Knight on 55 



Sweden, and American taxo- 



nomic parallels. Paper by James J. 

 Kemp on. (Abstract.) 55,719 



Pre-Glacial course of the upper Hud- 

 son River ; William J. Miller 



64, 177-186 



Proboscideans, Aftonian mammalian 



fauna 212 



Proceedings of the Second Annual 

 Meeting of the Paleontological So- 

 ciety, held at Pittsburgh, Pennsyl- 



