IndCi 
407 
Las Roi-as eruptives de Surveste do la 
Cuenca de Mexico, E. Ordonez, 47. 
Law of Priority, 1S2. 
Lawsou. A. C, Sketch of the geology of 
San Francisco peninsula, 319. 
Le Conte, Jos., Elements of Geology, :i84. 
Lesley's (Prof.), Final report, Jos. F. 
James, 323. 
Leverett, Frank, 4110. 
Lowell, Percival. The Polar cap of Mars, 
196. 
Luquer, L. M. (andRies), The Augeii- 
Greiss area, pegmatite veins and dio- 
rite dikes at Bradford, N. Y., 238. 
M 
Macbride, T. H., Certain fossil plants 
froni the Carboniferous of Iowa, 226. 
Maitland, A. G., Geological structure of 
the extra Australian artesian basins, 
26.-). 
Making of Manimotli cave, H. C. Hovey, 
228. 
Marbut, C. F., Pliysical Features of 
Missouri, 389. 
Mather, W. \V., 194. 
Matthew, G. F., Notes on Cambrian 
faunas,— The genus Microdiscus, 28; 
Traces of the Ordovician system on the 
Atlantic coast, 5U. 
McGee, VV. J., Sheet-flood erosion, 228. 
Mickwitz, A., Ueber die Hracliiopoden- 
gattuug Obolus, Eichwald, 264. 
Mineralogical lexicon of Franklin, 
Hampshire, and Hampden counties, 
Mass., H. K. Emerson, oU. 
Minerals. 
Anthracite, its occurrence and origin,!. 
Rubies of Burma, and associated min- 
erals, 49. 
Nuggets of native silver, 64. 
Minerals of New Zealand, 64. 
Of the pegmatite veins at Bradford, N. 
Y.,259. 
Missing link (The), 179. 
Missouri Geological Survey, Reports on 
Sheets 1 to 4, 321. 
Mixer, T. K., Discovery of a new fish 
fauna, from the Devonian rooks of S. 
W. New York, 223. 
N 
National Cyclopedia of American Biog- 
raphy, 190. 
Nansen's Polar Expedition, 195. 
Now and important source of phosphate 
_ rock in Tennessee, J. Safford, 261. 
New York Academy of Science. 402. 
Note on the discovery of a sessile Conu- 
laria, R. Rudemann, 'd^. 
Note on the formation of gold ore, K. 
von Kraatz, 100. 
Note on a recent review on Tabulate 
corals, F. VV. Sardeson, 131. 
Notes on Cambrian faunas— The genus 
Microdiscus, G. F. Mattliew, 28. 
Notes on Kansan drift in Pennsylvania, 
E. H. Williams, 237. 
Notes on the artesian well sunk at Key 
West, Fla., in 189.5, E. O. Hovey. 218. 
Notes on the glacial succession iu east- 
ern Michigan, F. B. Taylor. 234. 
Notes on the geology of southwestern 
N<nv Mexico, C. L. Webster, 57. 
Notes on the Quaternary geqjogy of the 
Mattawa and Ottawa valleys, F. B. 
Taylor, 08. 
O 
Observations on the dorsal shields in the 
duiichthyids. C. R. Eastman, 222. 
Observations regarding the occurrence 
of antlu-acite, witli a new theory of its 
origin, W. S. Gresley, 1. 
On certain granoi.hyres, modified by the 
incorporation of gabbro fragments, A. 
Barker, 48. 
On the occurrence of Silurian strata in 
tlie Big Horn mountains, Wyoming, 
and in the Black Hills, South Dakota, 
('. E. Beeclier, .31. 
On the vertebral columns, fins and ventral 
armoring of Dinichthys, B. Dean, 316. 
Ordonez, E., Les Rocas eruptives de Sur- 
veste de la Cuenca de Mexico, 47. 
Origin and age of tliegypsiim deposits of 
Kansas, (i. P. Griiiisley, 2:;6. 
Origin and age of the Laurentian lakes, 
and of Niagara falls, Warren Upham, 
169. 
Origin and relations of thecentral Mary- 
land granites. C. R. Keyes, 320. 
Origin of conglomerates, T. C. Hopkins, 
230; 
Origin of tiiehigh terrace deposits of the 
Monongahela river, I.C.White, 227 ; 368. 
Origin of the wind-gap, Fred B. Wright, 
Orotaxis: a method of geologic correla- 
tion, C. R. Keyes, 2S9. 
Paleontology and the biogenetic law, 
Karl von Ziitel, 140. 
Patton, H. B., 196. 
Peary Greenland expedition, 1896, 3:^5. 
Pontield (and Brush). Determinative 
mineralogy, 391. 
Pliysical Features of Missouri, C. F. 
Marbut, :iS9. 
Philadelphia Academy of Natural Sci- 
ences, 60. 
Pilsbry, Henry A., 60. 
Plains Permian, F. W. Cragin, 131. 
Pompeckj, J. F., The fauna of the Cam- 
brian of Tejrovic and Skrej, in Bohe- 
mia, 186; Ein neueutdecktes Vorkom- 
menvon Tremadoc Fossilien bei Hof, 
264. 
Polar cai) of Mars, 196. 
I'ost-Cretaceousgrade-plains in southern 
New England, F. P. Culliver, 231. 
Potomac formation, L<. F. Ward, 318. 
Powell, J. W., Fifteenth Report U. S. 
(icol. Surv»>y, :il7. 
I're-caiiibrian and Post-Ordovician dykes 
in the Adirondacks, H. P. Ciisliing, :^90. 
Pn-glacial Cuyahoga gorge in Cleveland, 
W a mill Upham, 223. 
Pro-glacial erosion cycles in nortliwest- 
ern Hlinviis, O. H. Hershey, 72. 
Pre-cambrian baso-l(>veling in the north- 
western states, C. W. Hall. 2:^8. 
Preliminary report on the Florida Par- 
ishes of East Louisiana, W. W. Clen- 
denin, 322. 
Preliminary report on the Geology of the 
common roads of the United States, 
N. S. Shaler, 318. 
Preliminary report on the Marquette 
Iron-bearing district of Michigan, Van 
Hise and Bayley, :f20. 
Prestwich, Josei)h, (obituary note), l.'W. 
Production of Iron Ores in i89,">, John 
Birkinbine, :J88. 
