4os 
I iiih'.r. 
Kent section and Gryphtea tucumcarii, 
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Key es, C. 1!.. Tin' unconformity <>l the 
(Oal Measures ami the St. Louis lime- 
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Knowlton, F. H„ 328. 
Laccolitic sills of the northwest coast of 
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Lake Superior, Anorthosytes and Lacco- 
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Larval forms of trilobites, C. E. Boecher, 
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Lawson, A. C., Anorthosytes of the Min- 
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Le Oonte, Joseph, 208; Geological, divis- 
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Lesqaereuz, L., on Glyptodendron, L33; 
The Genus Winchellia. 209 : Flora of the 
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Leverett, Frank. 107, 170, 173; Changes of 
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Limits of the glaciated area in New Jer- 
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Lincoln. D. F., Amount of glacial erosion 
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Lindenkohl, A., Mt.St. Elias and Mount 
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Lonsdale. E. EL, 12'.'. 
Low, A. P., 181. 
Lower Silurian of Minnesota, 331, 332. 
Lundbolnn. Hjalmar, Glacial succession 
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Lyon Mt.. Clinton Co., N. Y.. Dykes near 
31. 
1V1 
Madison meetings of G. S. A. and A. A. A. 
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Maine, Osar gravels, G. H. Stone, 122,200. 
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Marcou, Jules, Cerro Tucumcari, 103. 
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Trematobol us, an articulate brachiopod 
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Mercer, H. ('., 174. 
Mercerat, Alide, Exploration <>f Patago- 
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Microscopical Fauna of the ( Yetaceous in 
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Mineral deposits of southwest Wisconsin. 
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Mineral resources of I'. S., David T. Day, 
280. 
Minerals. 
Allaniti- and epidote, 218. 
< ialena nugget. 65. 
( )ni a lio. 260. 
Southwest Wisconsin, 237. 
Zinc in Missouri, 274. 
Mines and Mining building. Columbian 
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MiniDg Engineers, Australian Institute 
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Minnesota shore of lake Superior. A no it h- 
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Mndge, E. H.. Observations along the 
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N 
Nason, F. L.. Notes on some of the Iron- 
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Natural Gas and Petroleum in southwest- 
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Neocene. Correlation paper. W. H. Dal I 
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Neocene rivers of California, W. Lind- 
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Norian of the Northwest. N.H. Winchell, 
00. 
Note on Cretaceous in northern Minne- 
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Notes on Fossil Corals described by D. D, 
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Notes on some of the Iron-bearing rocks 
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O 
Observations along the valley of Grand 
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Ogilvie, Miss Maria, 404. 
Ore deposits of Colorado, etc.. A. Lakes. 
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268. 
Origin of Igneous rocks, J. P. hiding.-, 
121. 
Originof Parallel ami Intersecting Joints, 
W. O.Crosby. 300. 
Origin of Peconic bay and of Shinnecock 
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Ortboceras, The Protoconch of, .1. M. 
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Osai gravels of the coast of Maine. G. II . 
Stone, 122. 200. 
Outline of the geological and physical 
features of Maryland. G. 11. Williams 
and W. B. Clark, 396. . 
