INDEX TO VOLUME IQ 



GOO 



Page 

 Lake shores, Materials found on . . 494-495 



— Street terrace, Composition of 44 



terraces and fallscarp 43-44 



— Superior basin. Character of waters 



in vicinity of 504 



region. Basement complex of.... 8,9 



, Correlation of fauna in 14 



, Huronian series in 9-12 



— , Review of pre-Cambrian In- 

 vestigations in 7-8 



.Succession, structure, and no- 

 menclature of Cambrian and pre- 

 Cambrian rocUs of 12 



.Volcanic origin of basement 



rocks of 8, 9 



, Work of Logan and Murray in 7, 8 



— waters, Movements of the 489-49.3 



Lane, A. C, Abstract of paper by 5.5.3 



— cited on earth's gradient 1.3.3 



conglomerate of Lake Superior. 354 



— .Discussion by. . . 538, 539, 540. 553, 557 

 — , Mine waters and their field assay 501-512 



— . Paper read by 540 



— . Title of paper by 537 



"Lansing man," Controversy concerning 244 

 La Plata sandstone. Effect of tempera- 

 ture changes on 58, 59 



— ■ — , Occurrence of 56 



. Topographic forms of 57 



— valley. New Slexico, Analysis of red 



soil of 53 



, Source of eolian soil deposits of. 55 



Laramie basin, Benton shale in 455 



, Casper formation in 421-424 



, Chugwater formation in 435 



, Cloverly sandstone In 449 



, Montana formation in 459 



. Morrison formation in 445 



— mountains, Benton formation in . 456-457 

 , Casper formation along east slope 



of 424-428 



, Chugwater formation in foothills 



of 437 



, Montana formation in 461 



■ — - — , Morrison formation east of 446 



. Sundance formation east of. . 441-442 



— , Wvoraing, Section of Casper forma- 

 tion at 422 



Las Vegas plateau. Location of 75 



— of Nevada, Location and character 



of 68, 69 



— range, Nevada, Diagram of cross sec- 



tion of 68 



Laurentian district of the pre-Cam- 

 brian, Stratigraphy of 2 



— , Introduction of term 2 



— , Restriction of term 3 



— series, Colouring of 6 



Lawson, a. C, Discussion by. .537, 538, 556. 



567, 569 



— elected chairman of the Cordilleran 



section 578 



second vice-president 521 



— . Term "Heewatin" used by 9 



Lead, Occurrence in California mine of. 94 

 — , Occurrence in uranium minerals of. 116 



— , Weight of 116 



TiE CoNTE, , cited on geologic struc- 

 ture of the Great Basin region . . 64, 65 



Lee, . cited on detrition in the 



Southwest 70-71 



— , cited on the .Tornado del Muerto. ... 67 

 — .quoted on course of Colorado river. 71 

 Leighton, M. O., cited on tests of mine 



waters 508-511 



— . Observations on stream movements 



by 206 



Leith, , Differences in Archean and 



Algonkian series noted by 19 



Page 



Leith, , Work of U. S. Geological 



Survey done by 9 



Lesquereux, L., cited on fossils of Big 



Cottonwood formation 231, 233 



— , cited on redstone deposits 222 



Leveeett, Frank^ Acknowledgments to. 31 

 Lewis, Captain, Reference to expedi- 

 tion by 339 



Lewisiax formation. Unconformity of . . 23 



LiBRARr, Accessions to 579-588 



Librarian, Election of 521 



— . Report of 520-521 



LiEHENOw, C, Study of radioactivity by 136 

 Lime. Occurrence in Meguma series 



of 101-102 



Limestone, Black river, Occurrence in 



Theresa quadrangle of 163 



— , Carboniferous, Occurrence in Porcu- 

 pine Valley district of 330-332 



— , Devonian, Occurrence in Porcupine 



Valley district of 327,329-330 



— , Lowville, Occurrence i n Theresa 



quadrangle of 162 



— , Occurrence in Big Cottonwood for- 

 mation of 233-234 



— , Ordovician, Occurrence of 322 



— , Pamelia, Occurrence in Theresa 



quadrangle of 161 



Limestones of the Hastings formation. 4 



Theresa quadrangle. Character 



of 156, 157 



, Fauna of 157 



. Unconformity of 157 



Limestone, Thickness in Upper Yukon 



of 269 



— , Trenton, Occurrence i n Theresa 



quadrangle of 163 



LiTHOLOGiCAL rcsemblanccs in the Me- 

 guma series 106 



LiTHOPHVS.B, Occurrence in Utah rhyo- 



lite of 181 



— of Thomas range, Utah, Comparison 



with lithophvsiE of Tellowstone 



National Park of 181 



Little Sandy bay. Prince Edward 



county. Barrier bars at 474 



— Sodus bay. Enclosure by barrier 



beaches of '. 475 



Llano Estacado. Correlation with Las 



Vegas plateau of the 75 



Lockyer, Sir Norman, cited on disas- 



sociation of elements 121 



Loess of Gilder mound 250, 251 



— ridge at Hamburg, Iowa, View show- 



ing 252 



— at Waverly, Iowa. View showing. . . . 251 

 Logan, a. S., cited on a mound near 



Jefferson City, Mo 252 



LocAN, Sir William, Work in Huronian 



district of 4-7 



— ; Work on pre-Cambrian of 2 



— , Term "Grenville" used by 2 



— .Term "Laurentian" applied by 2 



Logan, W. N., cited on fossils of Sun- 

 dance formation 442 



Long hill. View showing cut on 250 



— Point spit, Composition of 481-482 



, Sketch map of 480 



Looking-glass rock. Dry valley, Utah, 



View of 57 



Los Gatos creek, Absence of deposits 



in 151. 152 



, Conglomerate formation in branch 



of 147-154 



LouDEEBACK, George D. ; Bcnitote ; Its 

 mineralogy, paragenesis, and geo- 

 logical occurrence. (Abstract.).... 569 



— , Discussion by 537 



— elected secretary of the Cordilleran 



section 578 



Li V— Bull. Geol. See. Am,. Vol. 19, 1907 



