578 



BULLETIN OF THE GEODOGICAL SOCIETY OF AMERICA 



Nitze, H. B. C, and Wilkens, H. A. J., &g 

 quoted on ancient volcanic rocks in 



North Carolina 356 



North Carolina, Geologic work in 101, 104, 105 



— , Photographs from, Catalog of. -123-424 



North Dakota, Geologic work in 108 



North End point, Virginia, Record of well 



at 210, 211 



North fork of Flathead river, Fault along. 343-344 

 Northview shale, Missouri, Geologic place 



of 274 



Nutzotin series, Alaska, Correlation of. 264 



Oakland formation, California, Character 



and thickness of 545 



Ocoee system, Definition of. 11-14 



Officers, Election of. 486-487 



— , List of 557 



Ogilvie, , Work of. 104 



Ohio, Geologic work in 101, 105, 108 



Olinda, Brazil, Fossils found at 47 



Ontario. Fossils from Hamilton group 



of 150-159, 164, 166, 180-185 



— , Hamilton group of Thedford in 149-186 



— , Ordovician succession in 517=518 



— , Lake, Origin of basin of. 295 



Ordovician succession in eastern Ontario 



[abstract] ; H. M. Ami .,.. 517-518 



Ore deposits of the Virgilina district, Vir- 

 ginia-North Carolina, Character and oc- 

 currence of 372-374 



Oregon, Geologic work in 108 



— , Photographs from, Catalog of. 424-425 



Orton, Edward, Work of. 105 



Origin and distribution of the loess in 

 northern China and central Asia; G. 



Frederick Wright 127-138 



Origin of the limestone faunas of the Mar- 

 cellus shales of New York [abstract] ; 



J. M. Clarke /. 535 



Osborn, H. F., Work of. Ill 



Osgood formation, Bearing of, on age of Cin- 

 cinnati anticline 531-532 



Outlook of the geologist in America: An- 

 nual address by the President, Charles 



D. Walcott 99-118 



Owen, David Dale, cited on Carboniferous 



limestones 275 



Ozark region, Faunas of 287-288 



Pai.ache, Charles, Work of. 107 



Paleontological collections of the geolog- 

 ical department of the American Mu- 

 seum of Natural History [abstract] ; Ed- 

 mund Otis Hovey 532 



Paleontology, Summary of work in 110-111 



Paleozoic era, Geologic formations of, in 



Tennessee, Table. of. 10-11 



, Orogenic movements during, in South 



Dakota 28-29 



— rocks, Alaska, northern, Occurrence 



of 238-244 



, southeastern, Correlation of...... 264-265 



, Deformation of 262-263 



, Occurrence of. 260 



Pannebaker, W. H., Acknowledgment to... 355 

 Parahyba do Norte, Brazil, Elevations 



along Conde d'Eu railway in 51 



, Fossils from, Descriptions of. 43-45 



, List of 47 



, General geologic relations of rocks 



in 50-51 



, Geology of 42-58 



, Sandstone exposures on coast of. 46-51 



Parahyba City, Brazil, Geological profile 



near 52, 53 



, Land depression near 53 



, Mangrove swamps near 52-53 



Parahyba limestone, Age and analysis of.. 45-46 



Page 

 Patapsco formation, Boundary between 



Arundel formation and 199-200 



Raritan formation and 203 



, Dip, strike, and thickness of. 199 



, Distribution of 200 



, Economic products of. 200-201 



, Maps showing 187,188 



, Lithologic characters of. 198,199 



, Organic remains of. 199 



, Section of 200 



, Views showing 200 



Patton, Horace B., Photographs by, Catalog 



of 400 



Patuxent formation, Boundary between Al- 



gonkian formations and 193-194 



Arundel formation and 196-197 



, Dip, strike, and thickness of 192 



, Distribution and boundaries of 193 



, Economic products of. 194 



, Lithologic characters of 191 



, Maps showing 187, 188 



— — , Organic remains of 192 



, Section of. 194 



Peabody Museum, Paleontologic work of 102 



Pechili, Gulf of, Orogenic movement at 129 



Peck, Frederick Burritt, elected. Fellow... 1 



Pedra do Porto, Brazil, Granite at 63-64 



Peiho river, China, Oiogenic movements 



along 129 



Peking, China, Loess deposits near 129-131 



Pennsylvania, Anticlinal folds in 530 



— , Geologic work in 101, 104, 108 



— , Photographs from, Catalog of 425-429 



Peppel, , Work of. 105 



Permian (?) formations, Table showing se- 

 quence of, in Maryland and adjacent 



states 232 



Pernambuco, Fossils from coast of, List of... 47 



— , Geological sketch map of 62 



— , Geology of coast of. 58-66 



— , Granite in 60-64 



— , Tertiary sediments near 86 



— , Trachytes in 59-60 



, Figure showing 60 



Pernambuco Central railway, Brazil, Eleva- 

 tions along 76 



, Topography and geology along.... 77-85 



Phelps sandstone, Missouri, Thickness of... 273 



Phillips, W. B., Work of 107 



Phosphate rock in Tennessee, Horizons 



of 14-15 



Photographs belonging to the Society, Cat- 

 alog of 377-474 



— , Committee on, Report of 526 



— , Miscellaneous, Catalog of 445-448 



Pilarcitos sandstone, California, Thickness 



of. 545 



Pinole formation, California, Character and 



thickness of. 545 



Pirsson, L. V., Work by 103, 109 



Pittsburg coal, Monongahela formation of 

 Maryland, Character, position, and 



thickness of 227-228 



, named by J. P. Lesley 228 



, Sections of. 227-228 



Platt, Franklin, Conemaugh formation 



named by 223 



Platyceras arkonense var. nov., Description 

 of 176-177 



— bucculentum Hall, Description of 179 



— quinquesinatum Ulrich, Occurrence of 179 



— subspinosum Hall, Description of 177-179 



— thetis Hall, Description of 179 



Pleistocene period, Hydrographic condi- 

 tions in South Dakota during 33-40 



Geologic formations of, in Tennessee, 



Table showing 10 



— rocks, Alaska, northern, occurrence 



of 249-252 



, Montana, Character and occurrence 



Of 315,328-330 



