703 



BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 



Page 

 Modiolus modiolus. Location of . . . . 522-523 

 MoENCOPiB shales of Utah, Climatic 



significance of 384-388 



, Section of the 385, 386 



. View showing 384 



Moxo.N'GAHELA area. Variations in thick- 

 ness of 44, 45 



— coal area. Extent of .... , 30 



■ , Thickness and composition of 



beds in 30-95 



— formation. Character of limestones 



of 1.59, 160 



, Coal beds in the second bitu- 

 minous basin of 50 



, Correlation of 30-45 



east from the Alleghenies 45-47 



, Erosion of 52 



in northern 'panhandle of West 



Virginia 64, 65 



• Ohio 66-81 



West Virginia 81-95 



, Nomenclature of 30 



, Salisbury basin of the 47 



, Source of sediments in 157, 158 



west from the Allegheny moun- 

 tains, in Penns.vlvania 47-64 



iMoxoNGALiA county. West Virginia, 



Section at 82 



in 43 



Monroe county. Ohio. Section in. . . 42, 133 

 Montana, Stratigraphy of western part 



of 400 



Montauiv till. Character of 524-526 



, Correlation of 512 



deposit, Age, location, and strat- 

 igraphy of 524-525 



— • , Description of 524 



— '■ — ■ — , Relation to other deposits of. . 524 

 ■Montessus, Count de. cited on corre- 

 lation of earthquake areas 241 



MoNTEzuArAS well. Arizona, Compari- 

 son with Afton craters of 217 



■ • — , Probable cause of formation 



of 220 



Montreal, Name "Leda cla.v'" given to 



clays at 528 



Moore, R. B.. Title of paper by GrtS 



Moraines and sand deposits, Occur- 

 rence in New Elngland of 512 



Morgan county. Ohio. Section in.... 42, V 6 

 MoRLEy, E. W., Analysis of anortho- 



site by 486. 487 



— ■ basic svenite bv 486. 487 



gabbro by 486 



Mount Desert island, Maine, Blue clay 



on 509 



.Old till exposures at 516 



— Hamilton quadrangle. Notes on geol- 



ogy of 661 



— Katahdin. Maine, Olaciation of.... 546 

 • — -Morris limestone. Occurrence of.... 99 



— Tavlor region. Biittes in Rio Puerco 



valley of 303 



, Cabezon peak of 310, 311 



. , Composition and character of 



buttes of 311-319 



. Cross-section in 309 



, Diagrams illustrating buttes 



of 310, 311, 31.3-316 



. — . , Erosion in 308 



, Geology of 303, 304, 307-309 



, (Jreat Neck butte of the 318 



, Literature of 305, 306 



• , New Mexico, A'olcanic necks 



of 303-324 



, Possible origin of buttes 



of 319-324 



, Purpose of investigations in . . 



.304-305 



. Sketch map of 307 



.Summary of investigations in. 305 



, Twin peak of 311, 312 



I'age 

 Mount Desert island, Views showing 



buttes of 312, 316-318 



Cabezon peak of 310 



peaks of 311 



Moi;ntain slopes. Cause of '. . . 390 



Mud-cracks. Presence in shale deposits 



of 4.58 



MUN.J0Y hill, Portland, Maine, Section 



at 541 



llya (irenaria. Location of 522-523 



— truiicata. Location of 522-523 



ili/tiliis ediilis, Location of 522-523 



Nantucket, Relations of glacial and 



interglacial beds at 507 



Xatica claiisa. Location of 522-523 



— (Ltduttia) f/ronlandica. Location of. 



522-523 



Necrology G91-692 



Nev.ad.\. Geologic structure in.... 396.398 

 — , Stratigraphy of Humboldt range in. 396 



Newark rocks. Area of 196, 197, 199 



. Character of '. 197 



. Topography of 196, 197 



— trap rocks of New .Jersey, Age of 



the extrusives of the 209,210 



intrusives of the 



209, 210 

 , Characteristics of extru- 

 sive traps of 200 



'■ intrusive traps of. 204 



. Correlation of intrusive 



traps of the . 207 



, Distribution of 200 



, New Germantown trap 



rocks of ; 203, 204 



. New Vernon trap of the. 203 



, Relations of extrusive 



traps of 200-204 



=^- intrusive traps of . 



204-209 



.Sand Brook trap of the. 



203. 204 

 . Structure and correla- 

 tion of 195-210 



, Summary of structure 



of 1Q5, 196 



, Watchung Mountain ex- 

 trusives of the 200-202 



Newberry, J. S.. cited on age of West 



Virginia coal beds 143 



fauna of the Pennsylvanian. . 168 



flora of the Sharon coal bed.. 169 



. — Monougahela formation in .Jef- 

 ferson county. Ohio 66. 67 



— quoted on needles of San .Juan val- 



ley 356 



— . Reference to paper by 324 



Newburyport, Massachusetts, Analysis 



of section at 537 



, Occurrence of non-fossiliferous 



clavs at ii-il 



New England, Differences in tills of.. .jIO 



— fossils. List of . . , 520-523 



New Brunswick-Newfoundland zone. 



Tjocation and character of 409 



— . Sketch map of 508 



— . Summary of glacial invasions of . . . 555 

 New Germantown traps of the New- 

 ark trap rocks of New .Jersey. 203.204 

 New Guinea. Former connection with 



Solomon islands of 236 



New Hampshire, Development of non- 

 fossiliferous clays in 529 



— . Views showing types of marine clay 



in -'^2 



New Ipswich. Double glaciation at. . . .309 

 New .Jersey. Structural map of the 



X&wark area of 105 



— , Structure and correlation of New- 

 ark trap rocks of 195-210 



