INDEX TO VOLUME l8 



705 



Page 



Mastodon, First American 650-652 



Mataxuska river, Alaslsa, Flora on.... 326 

 A1AT.S0N, George C, Acknowledgments 



to 511 



— cited on clay deposits at Exeter, 



New Hampsliire 537 



underground passages at 



Georgetown, Kentucky . . T 227 



Mauch Chunk delta plain. Character 



of 468 



, Relation to regions of ero- 

 sion of 468 



formation, Climatic conditions 



during 469-472 



, Fauna and flora of tlie. . . 460-462 



, Floodplain origin of the 466 



.General character of 450-453 



. Inferred conditions of origin 



of 462-466 



.Modern climates compared 



with that of 475 



. Organic evidences as to cli- 

 mate in 472 



.Other formations contrasted 



with 450 



— .Relations of land and sea in. 466 



, Sandstones of the 453 



■ — • — . Sedimentation in 453 



. Stratigraphy of the 453 



. Thickness of 452. 467 



of the anthracite coal fields.. 453-462 



^ shale. Origin and significance of. . 



449-476 



— ■ .View showing mud-cracks in.. 476 



shales. Difference between Potts- 



ville and 455. 456 



.Inorganic evidences of sub- 

 aerial exposure of 456-459 



.Non-marine character of.. 464-465 



— ■ .Organic evidences of subaerial 



exposure of 460 



— ■ . Sections of 454 



— ■ .Views showing plant impres- 

 sions In 476 



Maury, M. F., cited on deposits in the 



Appalachian basin 143 



Mawson. D., cited on effect of Graben 



depressions 249 



post-Devonian developments of 



the South Pacific continent 237 



^Mechanical concentration. See Con- 

 centration. 

 Mbdpord, Massachusetts. Occurrence of 



non-fossiliferous clays at 529 



Medina sandstone prolilem. The 653 



'MEDiTERR.iNEAN. Observations on 



changes in floor of the 244-246 



■ — . Specific gravity of sea water of the. 225 



Medlicott. . cited on character of 



Tertiary strata 475 



Meek. F. B.. cited on fauna of the 



Pennsylvanian 164 



— ■ fossils near Morgantown. West 



Virginia 167 



Meigs county. Ohio. Section at 79 



Memiranipora amencana. Location of. 



522-523 

 Memoir of Israel C. Russell, by Bailey 



Willis 582-592 



Nathaniel Southgate Shaler, by 



.John E. Wolff 592-609 



Samuel Lewis Penfield. by Joseph 



P. Iddings 572-582 



William Buck Dwight. by F. -T. 



H. Merrill 5T1-572 



Mbndenhall, W. C. Reference to 325 



— , Title of paper by 670 



— ; Two mountain ranges of southern 



California (abstract) 660-661 



Mcnestho albiila. Location of 522-523 



Mercer limestones. Occurrence of 149 



Mercury, Concentration of. due to 



sublimation ''O 



Meuria.m, .John C. ; Fauna of the as- 

 phalt beds exposed near Los An- 

 geles. California (abstract) 659 



— ; Occurrence of Middle Tertiary mam- 



mal-bearing beds in northwestern 



Nevada (abstract) 657 



— ; Origin of South American bears 



(abstract) 660 



— ; Primitive characters of American 



Triassic ichthyosaurs (abstract) . . 659 

 Merrill, P. J. H., Memoir of William 



Buck Dwight by 571-572 



Merrill, G. P.. Election of ... 637 



— , Record of remarks by 642 



— , Reference to papers by 504 



Uesoile-ima aix-tntu. Location of... 522-523 

 'Mesozoic age. Occurrence in Alaska of 



fauna of 326 



— beds of the Uinta mountains 288 



Meteor crater, Arizona. Character of . . 



495. 496 



, Composition of 496. 497 



. Disposition of meteor produc- 

 tive of 501, 502 



. Nomenclature of 502. 503 



, Origin of 493-504 



. — . "Silica" or powdered sand- 

 stone in 497. 498 



. Stratigraphy of 494 



. Untenability of volcanic theory 



of origin of 496 



.Views of... plates 54 and 55. 504 



Mexico, Archean rocks in 397 



— , Intrusive rocks in 411 



Michigan, Coal basin of 400,401 



— . Geology of southern part of. . . . 333. 336 



— ^ rivers, Lateral erosion on 333-350 



Middle Tertiary mammal-bearing beds 

 in northwestern Nevada, by .John 

 C. Merriam (abstract) ....' 657 



— Washington limestone. Occurrence of 



102. 116. 117. 124. 125, 129 

 Miller, W. G., Record of remarks bv. . 



614, 622 



. — , Title of paper by 614 



'jMiLNE, .John, cited on cable fractures 



due to earthquakes 243 



gravity values 235 



— • movements of the earth's crust. 239 



occurrence of earthquake 



shocks 247 



Mineral county. West Virginia. Coal 



areas in 45 



Minnesota. Trenton and Galena lime- 

 stones of 179-194 



JIiNSHALL. F. W.. cited on his measure- 

 ments in Liberty township. Ohio. . 135 



section near Burning springs. . 91 



— . Reference to section of 77 



Mississippi embayment. Character of.. 401 



— formation. Occurrence of 142 



— valley. Concentration of residual 



minerals in 13 



. Preglacial drainage in. by W. G. 



Tight 641 



MississippiAN deposits. Location and 



character of 142 



— fauna, Presence in Uinta limestones 



of : 293 



— series. Uinta range. Age, character, 



and thickness of 482 



Missouri. Distribution of sandstone 



masses in 253 



— , Origin of the lead and zinc ores in, 



bv Ernest R. Buckley 637 



MoOiolaria discors. Location of.... 522-523 



— Urrirjuta, Location of 522-523 



— nUji-'a, Location of 522-523 



