726 



REPORT OF NATIONAL MUSEUM, 1904. 



Page. 



Lesley, J. Peter, tribute to F. V. Hayden ... 606 



Lesley-Rogers controversy 461 



Lesquereux, Leo, assistant to D. D. Owen . . 443 

 assistant, Illinois survey. 496 

 survey of Penn- 

 sylvania 582 



on lignitic group 648- 



650, 653, 654 



origin of lignite beds 599 



sketch of 498,704 



work on geological sur- 

 vey of Indiana 548 



Levette, G. M., assistant, survey of Indiana. 548 



Lewis, Samuel 341 



Lewis, Zachariah, views on weathering of 



trap rock 255 



Lieber, Oscar M., assistant to Michael 



Tuomey 409 



sketch of 704 



work in South Caro- 

 lina 444 



Lignite beds, origin of, views of Leo Les- 



quereux . 



599 



Lignitic. See Laramie 647 



group, views of Leo Lesquereux. 648-650 

 strata, early views of F. V. Hay- 

 den 647 



views of various authori- 

 ties 647-658 



Limestone (white) of New Jersey, age of . . 524 



Lincoln, Benjamin, paper by 209 



Little, George, appointed State geologist of 



Georgia 336 



sketch of 7U4 



work in Georgia 552 



Litton, Abram, assistant to Owen 413 



assistant, survey of Missouri 437 



sketch of 704 



Litton, C. M., assistant, survey of Missouri. 555 



Living animals in rocks 245, 472 



Locke, John, assistant to Jackson in Michi- 

 gan 415 



Swallow 438 



sketch of 704 



views on Christy's work 397 



work in Ohio 332 



Loess, views of Binney 398 



Loew, Oscar, assistant, Wheeler survey 616 



Logan, C. A., assistant, survey of Kansas .. 527 

 Logan, William E., geological survey of 



Canada 384 



Geology of Canada . . 517 



on Laurentian fossils . 635 



drift 518 



originof Laurentian 



series 518-519 



sketch of 519,704 



subdivision of the 



Laurentian 476 



Long, Stephen H., expedition. Map of 



route 246 



expedition to Great 



Lakes 274 



expedition to Rocky 



Mountains 245 



Long-Keating expedition. Map 275 



Page. 



Louisiana, geology of, by F. V. Hopkins ... 558 



E. W. Hilgard's work in 535 



Practical geology of, by R. Thorn- 

 assy 504 



Ludlow, W., expedition to the Black Hills . 567 



Lyell, views on Richmond bowlder train . . 405 



Lyon, S. T., assistant to D. D. Owen 443 



McCauslin, Robert, mineral analyses 210 



McClellan, George B., work with Marcy ex- 

 pedition 434 



McCreath, A. S., assistant, survey of Penn- 

 sylvania 582 



McGillycuddy, V. T., topographer, Black 



Hills expedition . 568 

 McIntire,E.S., assistant, survey of Indiana. 548 

 McKinley, A., assistant, survey of Pennsyl- 

 vania 490 



McKinney, J. C, assistant, survey of Penn- 

 sylvania 490 



Macfarlane, James, sketch of 704 



Maclurean Era, the 207 



Maclure, William, geological classification 



of rocks 220 



geology of the West In- 

 dia islands 306 



letter to Parker Cleave- 



land 227 



Observations on the 

 Geology of the United 



States 217-227 



on formation of rocks . . 306 

 future of great cities. 218 

 United 

 States.... 218 

 remarks on inclined 



strata... 277,389 

 volcanoes. 280 



sketch of 217, 705 



Macomb, J. N., expedition of 178 



Macy, B.C. .assistant to Owen 413 



Maine, geological map of 512 



survey under Jackson... 346 



natural history survey of 511 



Mallett, J. W., work on Tuomey's report 408 



Mammoth bones in Ohio 249 



remains 213-214 



Manual of Geology, by E. Emmons 281 



Marcou, Jules, discovery of Permian fossils 



in America 485 



geological map of the 



United States 448 



geologist, Wheeler survey.. 616 



sketch of 705 



work on Pacific Railroad 



surveys 451 



with Agassiz in Lake 



Superior region 415 



Marcy, Oliver, sketch of 705 



Marcy, R. B., exploration of the upper Red 



River 434 



Marsh, Dexter, findingof fossil footprints. 625, 630 

 Marsh, Othniel C, appointed United States 



paleontologist 564 



comparative value of 

 vertebrate and in- 

 vertebrate fossils 658 



