INDEX TO VOLUME IX 749 



PAGE 



Landslip, Some Notes Regarding the Great, Vaerdal. Dr. Hans Reusch. 



Review by N. M. F. - - - - - - - - - - 639 



Lead Regions of Nortla Arkansas, and Zinc. John C. Branner. Review byC. 



R. Keyes ..-.-.-.... 634 



Le Conte, Joseph, Death of. Editorial by T. C. C. - - - - - 439 



Lee, Willis T. The Morrison Formation of Southeastern Colorado - - 343 

 Leith, C. K. Summaries of Current North American Pre-Cambrian Literature 79-441 

 Leonard, A. G., Assistant State Geologist. Samuel Calvin, State Geologist ; 



Iowa Geological Survey, Annual Report for 1900. Review by H. F. B. 547 



Lime-Magnesia Rocks, Perknite. H. W. Turner ------ 507 



Lower Carboniferous, Prodromites, a New Ammonite Genus from the. James 



Perrin Smith and Stuart Weller --.-... 255 



Magnet Cove, The Foyaite-Ijolite Series of; A Chemical Study in Differentia- 

 tion, IL Henry S. Washington ------- 645 



Mapping, The Formation as the Basis for Geologic. Edwin C. Eckel - - 708 



Marl, A Second Contribution to the Natural History of. Charles A. Davis - 491 



McKinley, President, Memorial --------- 533 



Medina Sandstone, Beach Structures in the. H. L. Fairchild. Review by 



N. M. F. - - - - - - - 549 



Medina Sandstone, Ripple-marks. Editorial by J. C. Branner - - - 535 



Memorial, President McKinley --------- 533 



Merriam, John C. Cordilleran Section of the Geological Society of America, 



Second Annual Meeting --------- 68 



Mesozoic, The Border- Line Between the Paleozoic and the, in Western Amer- 

 ica. James Perrin Smith - - - - - - - - 512 



Meteorites, Comets, and Nebulae, On a Possible Function of Disruptive Approach 



in the Formation of. T. C. Chamberlin ------ 369 



Meteorites, The Constituents of. I. Studies for Students. O. C. Farring- 



ton ------- - 393 



Meteorites, The Constituents of. IL Studies for Students. Oliver C. 



Farrington ----------- 522 



Mineraux utiles et leurs gisements. Geologie et mineralogie appliquees. Par 



Henri Charpentier. Review by J. C. Branner ----- 198 



Miniature Overthrust Fault and Anticline, Illustrated Note on a. A. H. Pur- 

 due ------------- 341 



Monticuliporoidea, Problem of the. I. Frederick W. Sardeson - - - i 



Monticuliporoidea, Problem of the. II. F. W. Sardeson - - - - 149 



Morrison Formation of Southeastern Colorado, The. Willis T. Lee - - 343 



Mountains, Glacial Work in the Western, in 1901. R. D. Salisbury - - 718 



Nansen, Fridtjof, The Norwegian North Polar Expedition, 1893 to 1896. Sci- 

 entific Results. Vol. 1. Review by R. D. S. - - - - - 87 

 Vol.11. Review by T. C. C. -------- 273 



Natural History of Marl, A Second Contribution to the. Charles A. Davis - 491 



