774 



BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



Page 

 Okanagan composite batholith, Resume 

 of petrographical development of. 



361-362 



, Table snowing sequence of 



eruptive rocks in . 363 



— mountains, Location, character, and 



elevation of 331 



— , Petrography of 340-356 



— , Unity of 339-340 



Olenellds fauna in northern Appa- 

 lachian area, Occurrence of . . . 574-575 



Pennsylvania, Occurrence of. . . 576 



Virginia, Occurrence of 576 



— • gilberti in the Bow River series, Oc- 

 currence of 22 



Oligocene-Miocene series, Clallam for- 

 mation of 461-465 



■ — ■ , List and correlation of fossils 



from the 463-464 



Oliphant, F. H., cited on oil-well 



record in Lewis county. West Va. . 136 



Olympic mountains, Altitude of 454 



, Geology of 457-459 



, Location, character, and extent 



of 454 



, Probable composition of 457-459 



— ■ peninsula, Washington, Clallam for- 

 mation of 461-465 



, Crescent formation of . . . 460-461 



, Cretaceous formations of. . 459-460 



, Drainage of 454-455 



, Eocene deposits of 460-461 



, Formation and character of 



the coastal region of 455-457 



, Geologic formations of coastal 



region of 459 



, Geological reconnaissance of 



coast of 451-468 



, Gold mines of 467 



, Literature concerning geology 



of 452-453 



, Location and extent of... 453-454 



— , Map of portion of coastline 



of 458 



■ — , Oligocene-Miocene deposits of 



461-465 



— , Orogenic movements in 468 



, Pleistocene deposits of... 463-467 



— ■ — ■ — , Pliocene deposits of 465-466 



, Quinaielt formation of... 465-466 



, Rivers of 456 



, Sketch map of coast of 453 



, Structure of 467-468 



, Topography of 454-457 



, Views showing geologic feat- 

 ures of coast of. 



plates 55, 56, 58. 455-456, 466 

 Ontario basin, Marine beaches in. . 714-716 



waters in 712 718 



, Topography of 714-718 



— , Nepheline syenite in eastern, by F 



D. Adams 695 



Ordovician formation in eastern Colo- 

 rado, Features of 556-563 



northwest Wyoming and Mon- 

 tana, Features of 553-554 



— — — the Black Hills uplift, Feat- 



ures of 555-556 



the Owl Creek mountains, Wy- 

 oming, Features of 552-553 



western Wyoming, Features 



of 554-555 



— geology of the Northwest, Resume 



of 565-566 



— , Reference to 16 



— rocks in Bighorn mountains, Wy- 



oming, Fish remains in 541-565 



, Reference to 19 



f Sketch map showing distribution 



of 558 



, View of exposure of ... . plate 78 . 556 



113 

 115 



111 



118 

 127 

 126 

 124 

 112, 

 128 

 114 

 125 

 124 



Page 

 Ordovicic and Cambric series in south- 

 ern Minnesota, Illinois, and Tennes- 

 see, Table showing plate 24. 237 



— formation, Arbuckle mountains, Char- 



acter of 578 



— sediments, Occurrence of 234 



Origin of the massive block moraines 



in the Canadian Rockies and Sel- 



kirks, by W. H. Sherzer 708 



Orton, Edward, cited on Brush Creek 



limestone 158 



his discussion of Ohio coals... 67 



oil-well record at Pomeroy, 



Meigs county, Ohio 197-198 



: occurrence of Vanport lime- 

 stone 73 



■ — ■ ■ — — • section in Carroll county, 



Ohio 



■ — ■ Guernsey county, Ohio . . 



on Yellow creek, Jefferson 



county, Ohio 



sections in Hocking and Athens 



counties, Ohio 121 



Allegheny formation in Coshoc- 

 ton county, Ohio 



Gallia county, Ohio.. 



Jackson county, Ohio . 



Meigs county, Ohio. . . 



■ Ohio 107, 110, 



115, 116, 120, 122, 



Tuscarawas county, O. 



Vinton county, Ohio. . 



Washington county, O. 



West Virginia 108 



Conemaugh formation 193. 



198, 199 



■ in Jefferson county, Ohio. 185 



Vinton county, * Ohio . . 197 



■ — Hocking valley coal field. . 120, 192 



■ — occurrence of Freeport lime- 

 stone 113 



Vanport limestone 113 



■ thickness of the Conemaugh . . . 188 



— ■ Vanport limestone 119 



— -well record at Marietta, Ohio. 



195-196 



— , Reference in note to 200 



— ■ — -to his discussion of the Ohio 



Lower Coal Measures 109 



— , Section at Guernsey county, Ohio, 



determined by 187-188 



Orton, E., Jr., cited on Allegheny for- 

 mation in Coshocton county, Ohio. 118 

 Osier island, Uplifted shorelines on... 57 



Osoroos batholith, Correlation of 359 



, Location and composition of 334 



, Metamorphism of 359 



— granodiorite batholith, Analysis of.. 344 

 , Character and composition of 



first metamorphic type of 344 



— — • — second metamorphic 



type of 345 



, Composition of 344, 346 



, Macroscopic and microscopic 



characteristics of 343-344 



— , Metamorphism of 344-347 



.Occurrence, character, and 



composition of third metamorphic 



type of 345 



, Specific gravity of 346 



, Metamorphism of 376 



, Origin of 373 



Otmeloi island, Forest-covered beaches 



on 54 



Ottawa and its environs, Geology of, 



by H. M. Ami 710 



— meeting, Proceedings of 671-754 



— — , Register of 728 



— , Resolution to hold the 1909 Inter- 

 national Geological Congress in... 701 



