604 



INDEX. 



Lockatong formation, iii, 10 

 Lockport limestone, ii, 370, 377 

 Lockyer, N., cited, ii, 13, 40 

 Lodge moraine, i, 301 

 Lodore formation, iii. 313 

 Loess, i, 23, 470; iii, 405 

 age of, iii, 408 

 concretions, iii, 409 

 distribution, iii, 405, 407 

 fossils, iii, 409 

 Oregon, iii, 409 

 origin, iii, 409 

 structure, iii, 406 

 thickness, iii, 409 

 Washington, iii, 409 

 Logan, Sir W., cited, ii, 151, 181, 



566 

 Logan, W. N., cited, iii, 64, 66, 



148, 149 

 Logan group, ii, 500, 560; iii, 



554 

 Lone Mountain limestone, iii, 576 

 Longmeadow sandstone, iii, 546 

 Longwood shale, ii, 373 

 Lookout conglomerate, it, 539: 



iii, 55i 

 Loop (along shore), i, 357. 363 

 Lophiodonts, Miocene, iii, 284 

 Lophospira helicteres, ii, 353 

 Lorraine beds, ii, 310; iii, 553, 



555 

 " Lost " interval, ii, 222 

 Lotorium, iii, 295 

 Loughridge, R. H., cited, iii, 302, 



411 

 Louisiana limestone, ii, 561 

 Loup Fork beds, iii, 269 



fauna, iii, 284 

 Lower Aubrey sandstone, iii, 3i3» 



574 

 Lower Barren Coal Measures, ii, 



542 

 Lower Burlington limestone, ii, 



56i 

 Lower Cambrian, ii, 219, 241 

 distribution of, ii, 219 

 or Olenellus fauna, ii, 296 

 relations to Proterozoic, ii, 224 

 Lower Carboniferous (see Mis- 

 sissippian) 

 close of, ii, 516 

 European, ii, 511 

 igneous rock, ii, 515 

 Lower Carboniferous period, ii, 



496 

 Lower Cretaceous system, iii, 

 108 (see also Comanchean) 

 Africa, iii, 129 

 Asia, iii, 129 

 Europe, iii, 126, 128 

 Foreign, iii, 125 

 South America, iii, 129 

 Lower Cross Timber formation, 



iii, 142 

 Lower Forestian epoch, iii, 421 

 Lowar Helderberg, ii, 418; iii 



556 

 Lower Magnesian limestone, ii, 



3i5; iii, 557 

 Lower Permian of Europe, ii, 626 



Lower Productive Coal Measures, 



ii, 542 

 Lower Silurian (see Ordovician), 



ii, 340 

 Lower Turbarian epoch, iii, 421 

 Low-level Columbia, iii, 447, 449 

 Lowville limestone, ii, 310 

 Loxonema ham.ltoniae, ii, 471 



leda, ii, 403 

 Lucas, F. A., cited, iii, 100, 182, 



183 

 Lucina aquiana, iii, 243 



cretacea, iii, 187 

 Ludlow series, ii, 396 

 Lumon clays, iii, 309 

 Lunar craters, i, 598 

 Lunatia marylandica, iii, 243 

 Lung-fishes, ii, 487 

 Lunn, A. C, cited, i, 552. 565, 

 566, 567, 572; ii, 102, 667, 

 Lutraria, iii, 295 

 Lycopodiales, Carboniferous, ii, 

 598 

 Devonian, ii, 493 

 Mississippian, ii, 537 

 Pennsylvanian, ii, 592 

 Lycopodites welthermianum, ii, 



599 

 Lycopods, geologic work of, i, 

 657 

 Triass'x, iii, 39 

 Lydekker, R., cited, iii, 320, 501 ; 



(and Nicholson), i, 658 

 Lyell, Sir C, cited, i,649; iii, 516 

 Lyginodendron, ii, 595, 596 

 Lyman, B. S., cited, iii, 14, 15 

 Lyriodendron, iii, 173 

 giganteum, iii, 174 

 Lyrodesma cincinnatiensis, ii, 



354 

 Lyropora, ii, 531 

 Lytoceras, iii, 134 

 batesii, iii, 136 



Macacus, iii, 324 

 MacBride, T. H., cited, iii, 494 

 Machaeracanthus, ii, 463 

 Machserodus, iii, 323 

 Mackenzie river, delta, i, 202 

 Maclurea arantiaca, iii, 491 



logani, ii, 353 

 Macrocallista, iii, 295 

 Macrocephalites, iii, 92 

 Macrocheilus blaini, ii, 520 

 Macrodon missouriensis, ii, 521 

 Macrontella scofieldi, ii, 351 

 Macropetalichthys, ii, 463 



sullivanti, ii, 462 

 Macrouras, iii, 85 

 Mactra, iii, 295 



Madagascar, Jurassic of, iii, 78 

 Madison limestone, ii, 153 *» "i» 

 70, 157, 166, 568 



sandstone, ii, 251 

 Magma, nature of, i, 401 

 Magnesite, i, 464 

 Magnesian limestone, iii, 561 

 Magnesium salts in sea, i, 377 

 Magnetic nodules in sea, i, 381 

 Magnetite, i, 464 



Magnolia, iii, 173 



pseudoacuminata, iii, 174 

 Malay peninsula, tin ores of, i, 



478 

 Malaspina glacier, i. 254 

 Mallet. R., cited, i. 322, 537. 538, 



628, 636 

 Mammals, Cretaceous, iii, 179 

 early home of, iii, 222 

 Jurassic, iii, 103 

 marine. Eocene, iii, 239 

 Pleistocene, iii, 496-498 



South American, iii, 498 

 Triassic, iii. 44 

 Upper Jurassic, iii, 105 

 Mammoth, Pleistocene, iii, 491, 



496 

 Mammoth Cave, i, 227 

 Mammoth hot springs, i, 654 

 Man as a geological agency, iii, 

 54i 

 dynasty of, iii, 533 

 glacial, in Europe, iii, 5r3 

 sources of good evidences 

 of, iii, 512 

 Neanderthal, iii, 326 

 Manasquan formation, iii, 140, 



r89 

 Manatash formation, iii, 267 

 Mancos formation, iii, 69 

 Manganese ore of Arkansas, ii, 



337, 377 

 Manganiferous deposits, i, 384 

 Manlius limestone, ii, 370 

 Mansfield sandstone, ii, 540; iii, 



556 

 Manson, M., cited, iii, 445 

 Manti shale, iii, 210 

 Manticoceras, ii, 478 

 Mantle rock, i, 12, 422 

 Maquoketa shales, iii, 559 

 Marble, i, 447, 47i 

 Marbut, C. F., cited, ii, 561; iii, 



411 

 Marcasite, i, 464 

 Marcellus shale, ii, 429 

 Marine deposits, i, 355-363. 370- 

 386 

 chemical, i, 367 375. 383 

 deep-sea, i, 368, 378-386 

 extra-terrestrial, i, 381 

 littoral, i, 368, 369 

 mechanical, i, 369, 380 

 organic, i, 375 

 Pleistocene, iii, 447. 476 

 shallow-water, i, 369-378 

 table of, i, 380 

 Marine faunas, Comanchean, iii, 



134 

 Marine life, distribution of, i 

 328 

 Jurassic, iii, 80 

 Miocene, iii, 290 

 Oligocene, iii, 257 

 Pleistocene, iii, 494 

 Triassic, iii, 48 

 Marine periods, iii, 95 

 Marl, i, 471 (see also Greensani 

 marl and Shell marl) 

 formed by plants, i, 655 



