INDEX TO VOLUME 15 



629 



Page 

 Lugano, Lake, Italy, Deltas and terraces 

 near 376-377 



McCalley. H , cited on Pottsville formation 

 in Alabama.. 126, 127, 128, 130, 132, 133, 135, 136 



McCreath, A. S., cited on Pottsville forma- 

 tion 51, 52 



Pottsville formation in Virginia 152 



155, 156 



— and d'Invilliers, E.V., cited on Pottsville 



formation in Virginia 150 



Maccullough, John, Views of, on ore depo- 

 sition 13 



McDonalds, West Virginia, Section at 193 



McGee, W J, Reference to geologic map of 



United States prepared by 489 



McHenry coal bed, Synonymy of. 205 



Maddaket, Nantucket, Shore changes at..515-516 



— harbor, Nantucket, View of 517 



Maggiore, Lake, Italy, Deltas and terraces 



of 371-375 



, Sketch map of. 372 



Mahanoy basins, Pennsylvania, Pottsville 



formation in 41-42, 47 



— creek, Pennsylvania, Section on 70 



Mahoning coal bed, Occurrence of, in West 



Virginia 181 



Manitou, Colorado, Cambrian rocks near.... 434 



— , Ordovician rocks at and near 414-415 



Manitou limestone, Character and extent 



of 413, 414 



, Fossils of 414 



Manitou Park, Cambrian rocks in 413-414 



Mannington, West Virginia, Section at 193 



Makbut, C. F., Titles of papers by 553, 569 



Marindin, H. L,, cited on changes in form 



of coast of Nantucket '. 509 



Marshburg coal bed, Occurrence of, in Penn- 

 sylvania 56 



, Synonymy of 206 



Martin, G. 0., cited on Pottsville forma- 

 tion , 63, 64 



Martinique, erosion phenomena observed 



on, in 1902 and 1903 560-561 



Marvine, A. R., cited on Morrison beds 421 



Mason coal bed, Occurrence of, in West Vir- 

 ginia 165, 180 



Massachusetts, Map of portion of 498 



Massillon sandstone, Synonymy of 205-206 



. See also Connoquenessing. 



— coal bed, Synonymy of 206 



. See also Sharon coal bed. 



Matthew, W. D., elected Fellow «... 532 



Maury, M. F., cited an Pottsville forma- 

 tion 163, 208 



Meek, F. B., cited on Benton formation in 



Nebraska 571 



Carboniferous rocks of Ohio 81 



Dakota and succeeding formations... 572 



fossils of Great Basin region 337 



Membership, Report on 526 



Members, List of. 608-618 



Memoir of William Clinton Knight; Erwin 



H. Barbour 544-549 



J. P. Lesley; John J. Stevenson.... 532-541 



Peter Neff ; H. P. Cushing 541-544 



Memphremagog, lake, Fossils from 463 



Merced series, Occurrence of, in California. 582 



Mercer coal beds in Kentucky 93, 



103, 106, 108, 109-110, 111, 112 



— Ohio 78, 79, 80, 81, 82, 83, 85, 88, 91 



Pennsylvania 70 



Tennessee 147 



Virginia 152 



West Virginia 187 



, Stratigraphic equivalent of. 57 



, Synonymy of. 205 



— group, Beds included in 269 



, Correlation of. 281,282 



, Occurrence of. 67 



68, 69, 70, 72, 73, 74, 75, 77, 85, 91 



Page 

 Mercer group, Stratigraphic equivalents 

 of 57 



— limestones, Synonymy of. 205 



— shales, Synonymy of. 205 



Merriam, J. C, cited on fossils of Great 



basin 295,334 



— , Title of paper by 579 



Merrill, F. J. H., Acknowledgments to 212 



— , Reference to map of New York prepared 



by 496 



Merrill, George P., elected Councillor 531 



Metalliferous deposits, Origin of, under 



planetesimal hypothesis 254 



Mexico, Western, Geology and geography 



of 549-550 



MiACOMETforeland,Nantucket,shore changes 



at 513 



' , Map of 514 



Middle Alton coal bed, Synonymy of. 205 



Milbank, South Dakota, Benton strata in 



wells near 574 



Milford, Nebraska, Greenhorn limestone 



near 575 



Miller, M , Section furnished by 167 



Miller, W. G., becomes life member 527 



Millsap limestone, Character and extent 



of 413, 415 



, Correlation of 436 



Millstone grit, Occurrence of, in Alabama.. 130 



, Synonymy of 207 



Minnekahta limestone, Character and ex- 

 tent of 383, 386, 403-404, 408, 410 



, Correlation of .• 410 



, Views showing exposure of 382, 403 



Minnelusa formation, Character aud extent 



of 383,384-385 



, Correlation of 435-437 



, Fossils of 437 



Minnesota, Benton formation in 574 



Minnewaste limestone, Character and ex- 

 tent of 383, 389 



Miocene rocks in southern coast ranges of 

 California, Character, occurrence, and 



thickness of 581-582 



Mississippi valley, Lead and zinc ores of, 



Mode of deposition of 21 



Missouri valley, Loess in, Evidence of the 



agency of water in 575-576 



Mitchell, Henry, Quoted on shifting of 



shoal sands off Massachusetts coast.. 508, 509 

 Mitchell, William, Map of Nantucket pre- 

 pared by 517 



Mitchell, South Dakota, Benton formation 



near, Character and thickness of.... 569, 572 

 Moatsville, West Virginia, Section near. 187-188 



Moira river, Ontario, Course of 220, 230-231 



Mollusks, Fresh-water, in the loess 576 



Molybdenite at Crown Point, Washington; 



A. R. Crook 283-288 



— , Crystallographic characters of 287 



— , Form of deposits of...... 285, 286 



— , Genetic relations of 287-288 



— , Literature relating to 284 



— , Localities of occurrence of 284-285 



— , Minerals associated with 285-288 



— , Source of. 288 



Monomoy island, Massachusetts, Changes in 



form of 509 



Monongahela river, Section on 73 



Montana, Hellgate and Big Blackfoot val- 

 leys in. Geologic section in 576-578 



Monterey shales, Fossils of. 582 



-, Occurrence, character, and thickness 



of 582 



Montevallo group, Horizon of 270 



Montgomery, A. J., Record of well fur- 

 nished by 194 



Mont Pele, New cone and obelisk of, Paper 



on, by E. O. Hovey 558-560 



Moore, P. N., cited on Pottsville formation 

 in Kentucky 94 



LXXXI— Bull. Geol. Soc. Am., Vol. 15, 1903 



