INDEX TO VOLUME 11 



645 



Page 

 Lawson, A. C, cited on geology of Carmelo 



bay 418 



malignite 415 



— , elected Councillor 520 



— , elected secretary of Oordilleran Section. 609 



— , Title of paper by 616 



Lead ore, Secondary minerals in 192, 193 



Leahi crater. See Diamond Head. 



Le Conte, Joseph, elected chairman of Cor- 



dilleran Section 609 



— , cited on the Lower Helderberg 242 



— , Titles of papers by 7, 615 



Leith, C. K., cited on iron-bearing member 



of the Animikie 507 



— and W. H. Hobb's, Title of paper by 5 



Leperditia scalaris Jones, Description of 371 



Lepini mountains, Italy, Fault scarp in 207 



, Geology of. 208 



, Rock fans of 209 



Lesley, J. P., cited on mode of occurrence 



of limonite ores 486 



— , quoted on the Oriskany in Pennsyl- 

 vania.... 310 



Levebett, Frank; Glacial phenomena of 



central Ohio [abstract] 2 



Levy, Michel, cited on tetrahedral earth... 74, 82 



Leucite-porphyry, Analysis of 399 



Leucite-tinguaite, Analysis of. 406 



Libbey, William, Commuting of dues by.... 515 



— , elected Fellow 1 



Librarian's report 519 



Library, Accessions to, from March, 1899, to 



June, 1900 617 



Limestones, Analyses of. 494 



Limonite ores, Bibliography of 499 



, brecciated, Character of 479 



, Chemical analyses of. 481 



, flake or sheet, Occurrences of 479 



, fragmental, Occurrences of 479 



, Hypothetical combination of 482 



, Minerals associated with 483 



, Mode of accumulation of iron in 495 



, Mode of occurrence of 484 



, nodular, Occurrence of 477 



, Original source of. 489 



, Pennsylvania, Classification of. 477 



, Geological position of 476 



, Occurrence and character of. 475 



, Minerals associated with 477 



, pipe, Occurrence of 478 



, Rocks associated with 483 



— — , White clay associated with 484 



Listing, S. O., cited on the tetrahedral earth 72 



Loper, S. Ward, Fossils collected by 3 



Logan, Sir William, cited on conglomerate 



of Dore river 109 



— , quoted on the Gaspe limestones and 



sandstones 327 



Oriskany in Canada 323 



Lower Coblenzian faunas, Correlation of..... 267 



— Devonic aspect of the lower Helderberg 



and Oriskany formations ; Charles Sehu- 



chert 241 



rocks, History of progress regarding... 252 



in Bohemia, Table of formations of 263 



Germany, American equivalents of.. 258 



, Extent, character, and divisions 



of 257 



, Fossils of 258 



, Terminology of the American 269 



— Helderberg fauna, European equivalents 



of. 337 



, Lower Devonic aspect of Oriskany 



and 241 



, Fossils from the Hydraulic limestone 



of the 249 



group, European equivalents of. 268 



in Virginia, Occurrence of. 272 



, List of specific equivalents of, for 



Bohemia and New York 264 



, Subdivisions of. 269 



Page 

 Lower Ordovician fossils from Wichita 



mountains, Determinations of ?43 



— Oriskany formation in New York, Char- 

 acter and distribution of 305 



fossils. New York, List of 307 



Loxonema (?) sp., Description of 370 



Lucas, F. A., Acknowledgments to 612 



Ludlow formation, Upper Silurian age of.... 246 

 Lugeon, M., cited on deformation in the 



western Alps 86 



Lujavrite, Analyses of. 413 



Lyell, Charles, cited on mammalian bone 



from the osseous conglomerate 459 



— , quoted on work of Sir J. William Daw- 

 son 552, 553 



Lyon, Marcus W., Acknowledgments to 612 



Lyons, A. B., cited on geology of Oahu 16 



Hawaiian lavas 54 



sandstone of Salt Lake Crater 



group, Oahu 39 



— , quoted on fossil shell localities, Oahu.. 54, 55 



McGee, W J, cited on the Columbia forma- 

 tion 455 



rock fans 2L0 



McCreath, A. S., Analysis by 481 



Magnet Cove, Analyses of dike rocks of 406 



igneous rocks from 399 



, Arrangement of igneous rocks in 394 



, Chemical features of igneous rocks of.. 402 



, Comparison of other regions with.' 414 



, Differentiation of magmas at 407, 408 



, Dikes in 403 



, Form of igneous area of 392 



, Igneous rocks of 389, 391 



, Mineral features of igneous rocks of.. 401 



, Petrology of igneous complex of 398 



, The "Ridge" in 394 



, Relation of igneous rock to surround- 

 ing shales in 393 



, Structure of igneous complex of. 390 



, Zonal arrangement of igneous rocks 



in 407 



Maine, Glacial period in 445 



— , Glaciation of mount Ktaadn in 433 



Makalapa crater, Oahu, Description of 41 



Manitou limestone, Goat-antelope from 610 



Manlius limestone, Faunal relations of 351 



, Figures showing upper surface of. 356, 357 



, Fossils of. 351, 353 



, Description of species of. 363 



— , Plates showing 374, 375 



, Occurrence and character of 350 



. See also Tentaculite limestone. 



Marcy, Oliver, Memoir of 537 



Marsh, Othniel C, Bibliography of 529 



— , cited on the Baptanodon beds 383 



Tertiary lakes of Rocky Mountain 



region 597 



— , Memoir of 521 



Martin, J. O., Acknowledgments to 433 



Maryland, Section of Helderbergian and 



Oriskanian near Cumberland, in 271 



Massachusetts, Acid volcanics in Neponset 



valley, in 116 



— , Age of Neponset Valley rocks in 116 



— , Analysis of acid volcanics from 121 



basic volcanics from 124 



— , Basic volcanics of Neponset valley in 122 



— , Geology of Plainville area in 450 



— , Glacial origin of older Pleistocene in Gay 



Head cliffs of 455 



— , Porphyritic volcanic rocks of 125 



— , Structure of Neponset valley, in 115 



— , Vertebrate footprints on Carboniferous 



shales of Plainville, in 449 



— , Volcanics of Neponset valley, in 115 



Matthew, G. F., cited on a pre-Cambrian 



terrane 3 



Mauumae crater, Oahu, Description of 46 



