646 E. 0. ULRICH INDEX TO "REVISION OF PALEOZOIC SYSTEMS" 



Page Plate 



Lainotte sandstone 521, 623 27 



Land areas, Tilting of 405, 407 



Land connection between North America and Europe, Hypothesis 



of 355 



Land connections and paths of marine fossil migrations during 



Paleozoic, Map of 484 



Land deposits 350 



preservation 351 



Land organisms 481 



Lateral change in lithology 477 



creep of continental platform, Relation to suboceanic spread- 

 ing of 446 



Laurel 28 



Laurentia 336, 337 



Lauzon formation 443 



Lebanon limestone 418 27 



Leclair 28 



Lee conglomerate . . 29 



Lehigh Valley cement rock 563 



Leiorhynchus 515 



Leipers formation of Tennessee 300, 309, 310, 418 27 



Leipers and Catheys faunas of Tennessee 511 



Lenoir bay 545 



formation 414, 453 



limestone 413, 538, 539 27 



Leperditella 657 



Leperditia 326, 327 



sp 663 



Leptsena rhomboidalis 299, 5'08, 514, 519 



Leptobolus 502 



insignis 323 



Level. Oscillations of Paleozoic 304 



Levis channel 443, 552 



shale 443, 675 



shales fauna 512 



trough 371, 512 



type of sediments 674 



Lewiston ( Queenston ) ma 27 



Liberty formation 423 28 



Liberty Hall limestone 508 27 



Licking Cove section in Pennsylvania 327 



Life zones. Sequence of 510 



Linden formation 28 



Lime Creek shale 



Limestone deposition. Rate of 381 



Unguis '[ 358 



Lingulella 493 



acuminata 345 



28 



