Index. 
399 
Lake age in Ohio, E. W. Claypole, 63. 
Lake Superior bandstones, age of; Edi- 
torial review, 44. 
Later Cretaceous in Iowa, C. A. White, 
221, A. G. Wilson, ;<87. 
Lawson, Andrew C. , Diabase dykes. Rainy 
lake, 199. 
Langley, S. P., 66. 
Leadville, Colo., Mining industry of, 194. 
LeCoute, J. , Flora of coast-islands in re- 
lation to racent changes of physical 
geography, 76. 
Lesley, J. P., 261. 
Lesquereux, Loo, 227. 
Lindley, C. T., 198. 
Lispodesthes? haworthi White, 22-4. 
Lower Silurian horizons, correlation of, 
E. O. Ulrich, 100, 179, 305. 
Lower Silurian fossils, tablp of in beds 
XI, XII, XIII, and XIV, E, O. Ulrich, 
183. 
Lyddeker, Genera of Sauropoda, 338; 
"other reptilian bones, 396. 
M 
Mareou, Jules, Geology of Georgia, Vt., 
328. 
Marsh, O. C, 136, 262. 
McGee, W. J,, Ovibos cavifrons in Iowa, 
126. 
Meteorites. Hans Reusch on, 336; Dia- 
monds in, 137. 
Metz, Discovery of palaeoliths at Madi- 
sonville, O., 137. 
Miller, S. A. 82; The Taconic system, and 
laws of nomenclature, 235; Huronian 
synonymous with Taconic, 238, A new 
genus of crinoids from the Niagara 
group, 263. 
Minerals — 
Additions to minerals of Minnesota, 
138. 
Anthracite in Bow river valley, 172. 
Brown hematite in Allamakee county, 
Iowa, 129. 
Magnetite in the porphyries of Missouri, 
364. 
Piedmontite in the porphyries of Mis- 
souri, 395, 
Augite, olivine, hornblende, glass and 
quartz in the diabases of Missouri, 
376-7. 
Quartz, original in the lava of Lassen's 
peak, 126. 
Mining industry of Leadville, Colo., 194. 
Mining statistics, Robt. T. Day, 336. 
Missouri, Archtean geology of, E. Ha- 
worth, 280, 863. 
Monticulipora a coral and not a poly- 
zoon, Jos. F. James, 386. 
Monticuiiporoid corals of the Cincinnati 
group, U. P. and Joseph F. .Tames, 59. 
Morphology of carina; upon the septa of 
rugose corals, Mary E. Holmes, 61, 
Mt. Stephens, Northwest Territory of 
Canada, primordial fossils at, 61. 
N 
Narrative of the journeys of David 
Thompson, J. B. Tyrrell, 250. 
Natural gas, future of, E. W. Claypole, 
31; Report on, by Orton, 62; At Find- 
lay, 0, 65; At Litchfield, 111., 138. 
Newberry, J. S,, receives the Murchisou 
medal, 335; On the production of gold 
and silver, 66. 
Nephehne rocks in Brazil, Orville A. 
Darby, 259. 
New genus and a new species of tubicolar 
annelida, S. Calvin, 24. 
New genus of crinoids from the Niagara 
group, S. A. Miller, 263. 
New publications, 128, 197, 329, 393. 
New geological map of Europe, 93, 117, 
250, 337. 
New post-pliocene Limnaeid, Call, 146. 
New South Wales, Rept, of the Dept. of 
Mines, 122. 
Niagara shales of western New York, sub- 
divisions and fauna?, N. S. Ruigueberg, / 
264. 
Nicholson, Alleyne, 198, 255, 396. 
Niobrara river considered with reference 
to irrigation, L. E. Hicks, 69. 
Nomenclature, Rules of the International 
Congress of Geologists, 91, 
Nomenclature of Cincinnati group fossils. 
Jos. P. James 333, E. O. Ulrich, 333, 
Norytes and gabbros, 339. 
Ocean level raised by adjacent land, E. 
Hull, 338. 
Ogishke conglomerate, 11. 
Organic origin of chei't in Carboniferous 
of Ireland, and similarity to that of 
North Wales and Yorkshire, Geo. Hinde, 
121. 
Orton, Edward, Preliminary report on 
inflammable gas, 62; On the Trenton 
limestone as an oil formation, 133. 
Ovibos cavifrons irom the loess of Iowa, 
W, J. McGee, 126. 
PalH-oliths in glacial drift at Madison- 
ville, O., 137. 
Pal«?ontological labors of Joseph F, 
James, .323. 
Paleontology of Brazil; Cretaceous fos- 
sils, C. A. White, 257. 
Parkeria, Structure and affinities, 255. 
Peat in Loup region. Neb., F. W, Russell, 
137. 
Pittsburg coal bed and its disturbances, 
Henry A. Wasmuth, 272. 
Platygonus comi)ressus, 67, 
Pompholopsis whitei Call, 147, 
Potomac formation, 136, 
Potsdam sandstone at Potsdam, N. Y., 
Origuial description of Emmons, 174. 
Pounding mill still in use in Ky., 68. 
Preliminary report on southeastern Ky. 
coal fields, Ci-andall and Hodge, 65. 
Preglaclal man, 137, 193. 
Preliminary report upon petroleum and 
natural gas, EdwardOrton, StateGeol- 
ogist of O., 62. 
Preliminary report on sea-coast swamps, 
Prof, N. S, Shaler, 258. 
Pressure of continental glacier, effect of, 
Dr. A. Winchell, 139. 
Primordial fcssils from Mt, Stephens 
northwestern Canada, C. Rominger,61. 
R 
Rainy lake region, diabase dykes of, A. 
C. Lawson, 199. 
