INDEX. 



603 



Leadville limestone, ii, 154, 506, 



563; iii, 57i 

 Lebanon limestone, «ii. 552 

 Lecanocrinus macropetalus, ii, 



403 

 LeClaire limestone, iii, 558 

 Le Conte, J., cited i, 474. 549 J 



ii, S7o; iii, 311. 312, 313, 



314, 315 

 Leda, iii, 403 

 clays, iii, 494 

 concentrica, iii, 292 

 parilis, iii, 243 

 Lee, W. T., cited, iii, 66, 119 

 Lee conglomerate, ii, 539» 559 5 



iii, 549 

 Lees, J. H., cited, iii, 146 

 Leffingwell, E. D. K., (and 



Capps,) cited, iii, 334 

 Leidy, J., cited, ii, 534 

 Leiorynchus quadricostatus, ii, 



528, 530, 532 

 Leipers formation, iii, 552 

 Leith, C. K., cited, ii, 146, 150, 



180, 194 

 Lelean, P. S., cited, iii, 219 

 Lendofelic, i, 456 

 Lenfelic, i, 456 

 Leonard, A. G., cited, ii, 542 

 Leperditia dermatoides, ii, 283 

 Lepidocoleus jamesi, ii, 351 

 Lepldocystis moorei, ii, 359 

 Lepidodiscus cincinnatiensis, ii, 



359 

 Lepidodendron, ii, 598, 602, 603 

 Devonian, ii, 493 

 Mississippian, ii, 537 

 Permian, ii, 643 

 sternbergii, ii, 602 

 Lepidolite, i, 464 

 Lepidosiren, ii, 487 

 Lepidostrobus sp., ii, 593 

 Lepocrinites gebhardii, ii, 455 

 Leptaceratherium, iii, 253 

 Leptaena rhomboidalis, ii, 367, 



453,455,525 

 Lepterpeton dobbsi, ii, 609 

 Leptomeryx, iii, 253 

 Leptopora placenta, ii, 520 

 Lesley, J, P., cited, ii, 125; iii, 



382 

 Lesleya, ii, 595 

 Leucite, i, 464 

 Leucophyre, i, 412, 453 

 Levees, breaking of, i, 188 

 miniature, i, 182 

 natural, i, 188 

 on alluvial cones, i, 182 

 Level of no stress, i, 561 

 Leverett, F., cited, iii, 362, 368, 



382, 386, 389, 390, 391, 



392, 393. 397, 398, 400, 



401, 412, 494; (and Cham- 



berlin), 382; (and Taylor), 



396 

 Lewis, H. C, cited, iii, 14, 370, 



382; (and Wright), 368 

 Lewis, Wm., (and Clarke,) cited, 



i", 154 

 Lewisian gneiss, ii, 158 



Lewiston limestone, iii, 548 

 Leyden argillite, iii, 546 

 Lias, Asia, iii, 77 

 coal, iii, 73 

 Europe, iii, 72 



fauna of Pacific coast, iii, 90 

 iron ore of, iii, 73 

 Norway, oil in, iii, 73 

 Lichads, Onondagan, ii, 467 

 Lichas incola, ii, 349 

 Lieber, 0. M., cited, ii, 145 

 Life, i, 638-672 



Archeozoic, ii, 137, 159 

 atmospheric effects of, i, 638- 



644; ii, 115 

 Cambrian, ii, 276 

 chemical work of, i, 638-646 

 climatic adaptations in Pleisto- 

 cene, iii, 486 

 climatic effects of, i, 643 

 Cretaceous, iii, 172 

 Devonian, ii, 448 

 effects of glaciation on, iii, 483 

 effects on rock decomposition, 



i, 130, 644 

 Eocene, general conditions of, 



iii, 221 

 geologic effects of, i, 639 

 Human Period, iii, 530 

 influenced by environment, i, 



666 

 inorganic rocks due to, i, 646 

 interglacial epochs, iii, 490 

 Jurassic, iii, 80 

 land, Cretaceous, iii, 172 

 man's influence on, i, 650 

 marine, Cretaceous, iii, 180 

 Jurassic, iii, 80 

 Pliocene, iii, 326 

 migrations of in Pleistocene 



Period, iii, 485 

 Miocene, iii, 282 

 Mississippian, ii, 518 

 Oligocene, iii, 252 

 Ordovician, ii, 342 

 Permian, ii, 641 

 Pleistocene, iii, 483 



Alpine remnants of, iii, 489 

 European, iii, 498 

 South America, iii, 500 

 Southern Hemisphere, iii, 

 500 

 Pliocene, iii, 320 

 protection against erosion, i, 



130, 644 

 Proterozoic, ii, 217 

 Silurian, ii, 396 

 stage of initial, ii, in 

 Triass'ic, iii, 38 

 Life and carbon dioxide, i, 640, 



642, 643 

 Lightning, effects of, i. 52 

 Lignite, i, 426, 470 

 Lignitic formation, iii, 199 

 Lima, iii, 91, 295 



wacoensis, iii, 135 

 Limburgite, i, 470 

 Lime carbonate, deposition of, i, 



375, 376 

 Lime Creek formation, iii, 558 



Limestone, i, 378, 424, 434 

 Limestone caves of Kentucky, ii, 



503 

 Limestone, crushing strength of, 

 ii, 127 



dikes, iii, 263 



formation and its effects on 

 atmosphere, ii, 660 



Mississippian, ii, 662 



origin of, i, 378, 654, 655 



sinks, i, 227, 231 



stratification of, i, 487 

 Limestone-forming animals, i, 

 660-662 



plants, i, 654, 655 

 Limonite, i ; 425 

 Lincoln, D. F., cited, iii, 362 

 Lindemuth, A. C, cited, iii, 370 

 Lindgren, W., cited, i, 474; ii, 

 555; i", 28, 70, 265,274; 

 (and Drake), iii, 210, 212, 

 299; (and Turner), iii, 317 

 Lingula, iii, 92 



brevircstra, iii, 93 



flags, ii, 271 



rectilateralis, ii, 356 



umbona, ii, 616, 617 

 Lingulasma schucherti, ii, 356 

 Lingulella ccelata, ii, 297 

 Lingulepis pinniformis, ii, 299, 



300 

 Linnarssonia transversa, ii, 298, 



299 

 Linopteris, ii, 595 

 Liparase, i, 459 

 Liparite, i, 470 



Lippincott, J. B., cited, iii, 264 

 Liquidamber, iii, 173 

 Lisbon earthquake, i, 535 

 Lithic eon, ii, 90 



era, ii, 83 

 Lithosphere, i, 9-19 



crust of, i, 13 



irregularities of, i, 10 



relief of, i, 11 



size and shape of, i, 9 



surface mantle of, i, 12 

 Lithostrotion canadense, ii, 530 

 Lithothamnion, iii, 294 

 Litopterna, iii, 321 

 Littoral currents, i, 342 



deposits, i, 368, 369 379 



zone, i, 369 

 Liveridge, A., cited, ii, 24 

 Liverworts, geologic contribu- 

 tion of, i, 656 

 Livingston formation, iii, 156. 



157, 159, 568 

 Livingstone, D., cited, i, 49 

 Lizards, Cretaceous, iii, 178 



Jurassic, iii, 101 



Triassic, iii, 43 

 Llamas, Pliocene iii, 322 

 Llanberis group, ii, 271 

 Llandeilo beds, ii, 342 

 Llandovery series, ii, 396 

 Load (of streams), i, 177-179 

 Lobocrinus longirostus, ii, 525 

 Localization of glaciation t iii, 

 433 



