INDEX. 



885 



Page. 



New York, geology ol 12, 13, 16, 64, 65, 72, 114, 120-127, 



156, 183-192, 225, 237-238, 245, 269, 297-313, 622-524, 639, 682 



publications on 35,36,40,41,44,47,50,53,55 



See also Long Island; Appalachian Moimtains. 



Niagara series 75, 183, 234, 236, 238, 239, 243-246, 250, 251 , 282 



Nicaragua (C-D 16-17), authorities on 345, 500-503, 709 



geology of 64,342,345,600-503,706,709-711 



See also Central America. 



Nichols shale / 91,92,96,96 



Nickles, J. M., publications by, list of 856 



Nicola lonuation 538-639 



Nicolas, F. J., publication by 866 



Niotaux beds 262, 



Nijavi shale 643 



Nikolai greenstone 337, 394-396, 544 



Niobrara group .... 648,662-663,668,672-673,674,676,681,685,691,693,697 



Nipigon series 14 



Nipissing Lake, geology of 196 



Noel shale 411 



Nolichucky shale 92-94, 96 



Nome group 266 



Nordenskjold, Otto, acknowledgments to 48, 61 



Normans Kill shale 184, 187, 189-190 



Norristown group 458 



North CafoUna (I-J 17-18), authorities on 58, 89, 508, 609 



geology ot 11, 



12, 64, 65, 71, 72, 89-98, 600, 508-510, 611-613, 656, 745, 747-749 



pubUcations on 33, 34, 40, 43, 46, 47, 49, 60, 52, 54 



See also Atlantic coast; Appalachian Mountains. 

 North Dakota (L-M 13-14), authorities on 58, 691, 761-764, 777-778 



geology of 10, 16, 62, 64, 634, 691, 706, 761-764, 777-778 



publications on 32,33,36,36,41,44,49,66 



See also Black Hills. 

 Northern Alaska. See Alaska, northern. 



North Park formation 681 



Northwestern Alaska. See Alaska, northwestern. 



Northwest Territories (N-R 9-20), authorities on 60 



geology ol 13, 62, 64, 65 



pubUcations on 33, 36, 37-38, 43, 45-46, 48, 53 



Norton formation 450 



Norton Sound, geology of 708, 791 



See also Yukon Valley (lower). 



Norwood, C. J., acknowledgments to 48,67 



Nosoni formation 373, 619 



Notch Peak formation 107 



Nottely quartzite 98 



Nounan formation 106 



Nova Scotia (L-20), authorities on 60, 



250, 261, 329-332, 384^386, 497, 498, 635, 536 



geology of U, 12, 13, 14, 16, 62, 64, 260-262, 269, 



329-332, 365, 384-386, 389, 401, 423, 426, 474, 497-498, 536-536 



publications on 31-32, 38-40, 42, 45, 47, 49-51 



Nugget formation 494, 630 



Nulato sandstone 702 



Nunda group 294, 304, 307-308 



Nimivak Island, authorities on 61 



geology of 708, 787 



publications on 36, 37 



Nunnally coal 455 



Nushagak formation 835-836 



Nuttall formation 449, 460 



O. 



Oakgrove sand 743 



Oakland formation 816 



Oakville formation 804 



Oaxaca (D-E 14-15) , authorities on 649 



geology of 549, 651, 58S, 794, 797 



See also Mexico. 



Obispo breccia 711 



Ocala limestone 740 



Oceanic series 640, 718-720, 799 



Ocoee group ■ 13, 72, 87-88, 89-90, 94-98, 363 



Octoraro schist 177-178 



Odanah series 697-698 



OgalaTla formation 821,822 



Ogden quartzite 175-176,283,379 I 



Page. 



Ohara limestone 409, 413 



O'Harra, C. C, acknowledgments to 48,58,69 



pubUcations by 239,856 



Ohem, D. W., cited 463, 464 



Ohem, D. W., and others, publication by 850 



Ohio (I-K 16-17), authorities on 58, 166, 233, 315, 317, 414^416, 492, 493 



geology of 12,156,166-166, 



225, 234, 269, 315-317, 401, 414-415, 418, 432-439, 474, 492-494; 



publications on 31, 34, 35, 49' 



Ohio Creek formation 76* 



Ohio shale 413,416-417 



Oklahoma (I-J 14^16), authorities on 58, 



82, 83, 273, 408, 410, 411, 460, 487, 489, 604, 606, 813 



geology of 11, 16, 65, 72, 



82-84,156, 168, 159-160, 228-230, 269, 273-274, 400, 407-412, 465- 

 466, 468-465, 474, 476, 487, 490, 579, 604-606, 608, 794, 813-814 



pubUcations on 31, 41, 63 



See also Interior province. 



Oklune series 633 



Older Parian group 684 



Old Miocene, classification of 9, 794 



Olean conglomerate 297 



Olentangy shale 315, 317 



Oligocene. See Marine Oligocene; Controental Oligocene; EarUer 

 Tertiary. 



Olive shale 415 



Olpe shale ' 458 



Olympic Peninsula, geology of 572-573, 706, 778-780, 832 



Omenica River, geology on 225. 263, 708, 785 



Oneida conglomerate 237, 239 



Oneota dolomite 118,297,312-313 



Onondaga group 245, 



275-276, 278-281,286, 289, 291, 295, 297, 300-302, 304, 317 



Ontario (L-M 15-17), authorities on 60, 



166, 183-192, 245, 250, 291-293, 335, 336 



geology of 14, 



15, 62, i;4, 65, 156, 183-192, 225, 244-246, 250, 269, 291-293, 335-336 



publications on 30-33, 35-39, 43-48, 51, 62, 54-66 



Oologah limestone 463 



Opeche formation 12, 373, 492, 495-496 



Orange sand 812 



Orangeville shale 414 



Orddfiez, Ezequiel, acknowledgments to 48,66 



Ordoviciau system. See Middle and X'pper Ordovician; Cam- 

 brian and Lower Ordovician, 



Oread limestone 458,464 



Oregon (K-L 10-11), authorities on. 69, 349, .380, 527, 533, 534, 661-564, 571, 

 579,017-620,621,667-670, 764, 771-773, 819, 824, 825, 826, 830-831 



geology of 10, 11, 12, 64, 342, 



349-350, 355, 380-381, 600, 527--528, 533-634, 549,561-569,571, 

 579, 617-621, 637, 667-670, 686, 764, 771-773, 794,819,824-8309 



publications on ' 37, 38, 45, 60!i 



See also Pacific coast. 



Oriskany formation 2OO . 



274-276, 278-281, 288, 291-292, 294-296, 297, 299-300, 304, 316 ■ 



Orizaba limestone 588J 



Orr formation jq^ 



Orton, Edward, acknowledgments to gg 



<='*«i 165,316,416,435 



publications by, list of g^g 



Osage group 408,409,410,411,413,420,458 



Osann, A., acknowledgments to 48 61 



Osbom, H. F., cited y^„ 



768-769, 760, 766, 767, 770, 775, 778, 821-822, 823,829-830 



publications by, list of. ^^ 



Osgood formation 232 235 



Osmont, V. C, cited ' gijlgjg 



publication by gj_. 



O'SulUvan, Owen, acknowledgments to ; Ig gg gj, 



Oswayo beds " ' ' 



Oswego limestone "" . 



Ottawa Basin, geology ot ,gg 



Otterdale sandstone ^^ 



Ouachita area, geology of. '-.---." ';;'456l466,"458-460. 



Ouachita slate im-lKi 



Ouray limestone 284-286,' 357,' 367-368, 370-371 



Overprinting, effect of. 23 ga 



