INDEX TO VOLUME 23 



755 



Page 



MoRVAN, The Colorado Front Range is a 118 



MORVANS of different kinds 117 



MorxTAiN-PROorciXG forces. Notes on. . 71 

 MuLTiTUBERCULATA ", William K. Greg- 

 ory 100 



National Museum (new), Washington, 

 D. C. Twenty-fourth Annual Meet- 

 ing at the 2 



Nbbra.skax drift of the Little Sioux 

 Vallev. in northwest Iowa ; J. E. 

 Carman 47, 735 



Neocolemanite, a variety of coleman- 

 ite and howlite from Lang, Los 

 Angeles County, California ; Arthur 

 S. Eakle 70 



Nevada Hills, Geology of the 74 



New Mexico. Descriptive details of fos- 

 sils, coal fields, rock measurements, 

 etcetera 6ir)-6r>9 



, Stratigraphy of the coal fields of 



northern central 571-686 



New York hanging valleys, Pre-Glacial 



equivalents of 483 



(western). Moraines of 46 



Nicaragua, Age of the igneous rocks of. 516 



— (northeastern), Geological recon- 



naissance in ; Oscar H. Hershey. . . 



36, 75, 493-516 



— pre-volcanic sedimentaries 515 



— , Quaternary deposits and formations 



in 497-508 



— Tertiary rocks 508-514 



Nicholson. H. C. : Paleontology of the 



province of Ontario quoted from,. 371 



Nile and Rhine deltas 387 



Noatak basin, Alaska 567 



Nomenclature of faults: H. F. Reid. . 74 

 , Preliminary report of the Com- 

 mittee on the 50 



— .Suggestion for mineral 51,729 



Oahu, Tertiary deposits of 71 



Officers, Correspondents, and Fellows 

 of the Geological Society of Amer- 

 ica, 1912 55-68 



— Geological Society for 1912 2 



Oklahoma, Boulder beds of the Caney 



shale at Talihina 50, 457-462 



Oligocene, Miocene. Pliocene, and 



Pleistocene, Correlation of . . . . 245-250 



Ontario, Moraines of 46 



— . Oriskany sandstones of 83,371-375 



Onyx deposits in east Tennessee; C. H. 



Gordon 37, 729 



Oriskany sandstones of Ontario ; Clin- 

 ton R. Stauffer 83. 371-375 



Ornithopoda. Iguanodontia ; R. S. Lull. 210 

 Orthoclase as a vein mineral ; Austin 



F, Rogers 72 



OsBORN, H. F., African mammals dis- 

 cussed by 85 



— ; Correlation and Paleogeography . 85,232 



— . Perissodactyla discussed by 85 



Osborn's (Henry F.) "Age of Mam- 

 mals." Literature referring to Ar- 

 tiodactyla 168-178 



OxiPATiox, Post-Glacial 289 



Ozark IAN fauna ; E. O. Ulrich 84 



Paige, Sidney, Fossillferous conglomer- 

 ates discussed by 83 



Paleobotany, Titles of papers on 88 



I'aleogeography, 1900-1912, Partial bib- 

 liography of 254 



Paleontological Society, Address of 

 President, and smoker tendered to 

 Geological Society of America by 

 the Geological Society of Washing- 

 ton attended by 86 



I'age 

 Paleontological Society. A. W. Grabau 

 and T. W. Stanton appointed Audit- 



insr Committee of HI 



— ■ — .Dinner with the Fellows of the 



Geological Society of America 84 



. Memorial address on Samuel Cal- 

 vin, by Stuart Weller, before 82 



. Officers, Correspondents, and 



members, 1912 .S9 



^ - — . Officers and members elected for 



1912 SI 



.Proceedings of the Third Annual 



Meeting 77-92 



. Register of the Washington 



Meeting. 1911 SS 



. Report of Auditing Committee. . . 84 



Council 77 



S<»<Tetary 78 



— Treasurer 80 



.Titles of papers on general pale- 

 ontology and stratigraphy 82 



— — .Vice-President C. R. Eastman, 



presiding officer 88 



Paleontology of a voracious appetite ; 



.John M. Clarke 83 



Paleozoic Bryozoa, Reference to.. 357,366 



— coals. Resins in .'^7. 728 



— faunas of the Eastport Quadrangle, 



Maine. Correlation of the.. 83,349-352 



— fishes : Bashford Dean 86, 224 



— reptiles and Ampliihia. a compavison 



of old and new world forms ; E. C. 

 Case 86, 200 



Pantotherta: William K. Gregory.... 191 



Paragenesis of the zeolites ; J. Volney 



Lewis 37 



Parks, W. A. ; A new Trenton crinoid 



from Ontario 84 



— . Oriskany sandstones of Ontario dis- 

 cussed by 83 



Pbneplaxation of the plateau, British 



East Africa 307 



Perissodactyla, Classification of 179 



— : J. W. Gidley 85, 179 



Peronopora. Development of 361 



Peterson. O. A. : Artiodactyla 86, 162 



Petrographic-microscopic work. Gran- 

 ularity in 37, 726 



Petroleum associated with taults and 



dikes. Occurrence of 51,728 



Photographs, Report of Committee on. 35 



Photography (color), Application to 



optica mineralogy of 51 



Phrases. The expansion into their full 



meaning of condensed 100 



Phylloporina corticosa, Development 



of 363 



Physiography of the East African 



plateau : George Lucius CoUie 49 



Plains and valleys. Eastern Washing- 

 ton 533 



Plants from Florissant, Colorado, Some 



interesting new 88 



T'lateau of British East Africa ; George 



Lucius Collie 297-316 



— plain of Toyalan^ and TiUcero. Domi- 



nant features of 713 



I»LEisTOCENE deposits. Perplexity of in- 

 termingling strata 709 



— formations, Intermingling of 



4S. 709-712. 738 



— of Sioux Falls. South Dakota, and 



vicinity ; B. Shlmek 12,"»-154 



I'LEURACAXTiiiD.K. Crauiuni of the 87 



Powell. Major .7. W.. Secretary In- 

 structed to transmit resolution to 

 the Secretary of the Interior ap- 

 proving naming a national park on 

 the Grand Canyon of the Colorado 

 after 45 



