1 174 



INDEX 



Nile delta, salines of, 355 



, saline deposits on, 617 



, thickness of, 609 



River, 248 



: — , flood plain of, 589 



, overflow of, 68 



Nile Valley, angular sands along, 553 



, caverns in Eocenic limestones 



of, 346 

 Niles, W. H., cited, 753, 774 

 Nitrogen, 24, 25 

 Nittany Valley, 175 

 Nodes, 945 



Noel black shale, 732 

 Nontronite, 39 

 Nordmann, V., cited 92 

 Normandy, dunes of, 557 

 North Cape, 236 



Germany, Permic climate of, 375 



Pole, ascertained migration of, 899 



, hypothetical migration of, 898 



Sea, 112, 218, 234, 230, 239 



, height of waves of, 210 



, submarine forests of, 224 



, subsidence of coast of, 223 



, temperatures in, 191 



Siberian shelf, 103 



Northwest Australian shelf, 103 



Norway, Cambric glacial deposits from, 534 



, concretions in clays of, 763 



, dolomites of, 334 



, recent corals of, 392 



Norwegian shelf, 103 



Novaculite, 755 



Nova Scotia, erosion stacks of, 225 



, peat bog of, 515 



, red Mississippic beds of, 622 



Nova Zembla, 236 



, red algae at, 470 



Novorssiisk, winds from, 49 

 Nubian sandstone, 61, 565 



, dune origin of, 570 



, Libyan sands derived from, 553 



Nullipore, 385, 470 



Nummulite limestone, 453 



Nummulites, 942 



Nunatack, 326 



Nunda sandstone, see Portage 



Nyssetum, 487, 500 



O 

 Oatka, 377 



Oaxaca, volcanic ash deposit of, 60 

 Obrutschew, cited, 604 

 Ocean, composition of, 158, 159 



, mean depth of, 6 



Oceanography, 20, 21 



Oceanology, 20 



Oceans, areas of, 100 



Ochsenius, C, cited, 267, 350, 353, 359. 



366, 369, 370, 381, 382 

 O'Connell, M., cited, 989, 990, 1029, 1039 

 Octapoda, 1021 

 Octoseptata, 943 



Odessa, subaquatic glidings at, 659 

 Oeningen, deformations at, 784 



, folding in Miocenic marl of, 780, 781 



, Miocenic shell deposits of, 631 



Oesel, Island of, cuesta of, 838 



, Synxiphosurans from, 1029 



Ogden quartzite, 817 



River, calcium carbonate in, 468 



Ogilvie, I. H., cited, 856, 858 

 Ogilvie-Gorden, M., cited, 435, 464 

 Ohio, Devonic limestones of, 471 



■ , origin of black shale of, 484 



River, 245 



Oisan Mountains, 127 

 Ojen, P. A., cited, 92 

 Okefenoke Swamp, 500 

 Oken, L., cited, 917 

 Okhotsk-Sachalin shelf, 104 



Sea, 108 



Oklahoma, 262 



t: , basal Cambric sandstones in, 729 



Oland, Island of, cuesta, 838 



Old Faithful Geyser, siliceous waters of, 



168 

 Oldham, R. D., cited, 585, 639 



, quoted, 586 



Old Red sandstone, analyses of sand grains 



of, 716 



, cliffs of, 225 



, deltaic origin of, 636 



, dune origin of parts of, 571 



, fishes in, 951 



, Myriopoda in, 947 



, non-marine, iioi 



, unconformity below, 824 



Old World Block, 9 

 Olean conglomerate, 252 

 Olenellus fauna, 1052 

 Olenidae, as index fossils, 1134 

 Olenoides fauna, 1052 

 Olenus limestones, 53 

 Oligocenic, pyroclastics of, 526 

 Oligochaste, 1024 

 Oligotraphent, 498 

 Olkusz, fulgurites in, 73 

 Omori, F., cited, 879 

 Onchidium, 986 

 Oneonta, see Portage 



sandstone, 636 



Onondaga limestone, 261, 407, 423, 424, 



425, 426 

 Onto-stages, 971 

 Onto sub-stages, 971 

 Oolite, Great, 472 



, Inferior, 472 



- — — , Superior, 472 



Oolites, size of phytogenic, 468 



Oolitic sands, 422 



Oozes, formation of, 996 



Opercula, 945 



Operculina limestone, 52 



Oran, province of, 345 



Orange Spring, composition of, 168 



Orbitoidal limestone, 453 



Ordovicic, black shale resting on, 732 



, insects from graptolite shales of, 949 



, origin of black shales of, 674 



, Upper, replacing overlap of, 744 



sandstone, marine progressive overlap 



of, 728 



Oregon, basaltic plateau of, 867 

 Ore Sound, 241 

 Organ Pipe Reef, 404 

 Orinoco delta, 608 



River, tree trunks carried by, 105 1 



Oriskany-Esopus, contact in Heldeiibergs, 



823 

 Orkney Islands, 112, 218, 230, 234 



, Tertiary dikes in, 867 



Orogenesis, 16, 776, 1147 



Orogenic movements, 12 



Orpiksuit fjord, 87 



Orth, cited, 287, 299 



Orthoboric acid, 364 



Orthogenesis, 963 



Ortiz Mountains, conoplains of, 856 



Ortmann, A. E., cited, 80, 96, 647, 688, 



995, 999, 1022, 1027, 1039, 1059, 1061, 



1062, 1071, 1134, 1:49 



, quoted, 1042, 1055, 1061, 1065 



Orton, 252 



