Index. 
399 
Mobers:. J. C, Sveriges alsta Kauda 
Trilobiter, 59 ; Nagra Calcitkristaller 
frati Nordmarken, 59. 
Montiily author's catalogue, 60, i;W, 186, 
257, 321, 383. 
N 
Nagra Calcitkristaller fran Nordmar- 
ken, T. C. Moberg, 59. 
New cystocrinoidean species from the 
Ordovician, F. W. Sardeson, 263. 
Nordeiiskjold, E., On some fragments of 
slate found rioating on the sea in 
Southwest Patagonia, 388. 
Norton, W. H., 39?,. 
Notes on a new meteoric iron near Tom- 
bigbee river, Ala., Warren M. Poote, 
319. 
Notes on the corundum-bearing rocks 
of eastern Ontario, W. (i. Miller, 276. 
Notes of a new discovery concerning 
Uiutacrinus, Frank Springer, 92. 
Occurrence of roscoelite, H. W. Turner, 
318. 
On a hydromica from New Jersey, F. W. 
Clarke and N. H. Darton, 182. 
On some fragments of slate found float- 
ing on the sea in Southwest Patagonia, 
E. Nordenskjold, 388. 
On the association of argillaceous rocks 
with quartz veins, O. A. Derby, 182. 
On the chemical composition of parisite, 
and a new occurrence in Montana, S. 
L. Pentield and C. H . Warren, 318. 
On the Qomenclatiire of certain Ampri- 
can fossil vertebrates, O. P. Hay, 3i5. 
On the occurrence, origin and chemical 
composition of chromite, J. H. Pratt, 
181. 
On the occurrence of Paleotrochis in 
volcanic rocks in Mexico, H. S. Wil- 
liams, 181. 
On the phenocrysts of igneous intrusive 
rocks, L. V. Pirsson, 1»0. 
On the separation of alumina from 
molten magmas and the formation of 
corundum, J. H. Pratt, 319. 
On stratification planes, C. R. Keyes, 294. 
Origin and age of certain gold "pocket" 
deposits in northern California, O. H. 
Hershey, 3H. 
Origin of grahamite, I. C. White, 253. 
Origin of Paleotrochis, J. S. Diller, 182. 
Orton, Edward, 326. 
Paleozoic terrane beneath the Cambrian, 
G. F. Matthew, 55. 
Pearson, H. W., Is the so-called up- 
heaval of Scandinavia apparent or 
real? 192. 
Penfield, S. L., (and C H. Warren). On 
the chemical composition of parisite, 
and a new occurrence of it in Montana, 
318. 
Petrographical notes on some rocks 
from the Fiji islands, A. S. Eaklo, 305. 
Petrographical province of Essex 
county, Mass., H. S. Washington, 2.^)5. 
Pliillips, A. H., Structure and composi- 
tion of.the trap of Rocky Hill, N. ./., 
321. 
Pirsson, L. V., On the phenocrysts of 
igneou.^ intrusive rocks, ISO; 394. 
Possible new coal j)lants in coal, W. S. 
Gresley, 199. 
Pratt, J. H., On tlie occurrence, origin 
and chemical composition of cbro- 
mite, 181 ; on the separation of alum- 
ina from molten magmas and the for- 
mation of corundum, 319. 
Preliminary notice of the Etcheminian 
fauna of New Foundland, G. F. 
Matthew, 125. 
Prosser, C. S., 134. 
Riggs, E. S., 134. 
Sardeson, F. W., Anew Cystocrinoidean 
species from the Ordovician, 2b3. 
Shattuck, G. B., 134. 
Slieiiani, E. M., 66; Geology of Greene 
county, Missouri, 184. 
Smock, J. C, Geol. Sur. New Jersey, re- 
port for 1898, 253. 
Shore development of the Bras d'Or 
lakes, J. E. Woodman, 329. 
Siebenthal, C. E., 390. 
Society of Naturalists, 326. 
Some analyses of Italian volcanic rocks, 
H. S. Washington, 'Si.\. 
Some Cretaceous drift pebbles in North- 
ern Iowa, J. A. Udden, 3s9. 
Some glacial wash-pin ins of Southern 
New England, J. B. Woodworth, :^81. 
Some rock forming biotites and amphi- 
boles, H. W. Turner, 181. 
Springer, Frank, Notice of a new dis- 
covery concerning Uiutacrinus, 92. 
Spencer, A. C, 390. 
Spurr, J. E., Geology of the Aspen Min- 
ing district, 307. 
Steiger. George (F. W. Clarke and). Ex- 
periments relative to the constitution 
of pectolite, pyrophyllite, calamine 
and aualcite, 320. 
Stewart, Alban, Loptichthys, a new 
genus of fl^shes from the Cretaceous of 
Kansas, 78. 
Stone reef at the mouth of Rio Grande 
do Norte, Brazil, J. C. Branner and C. 
E. Gilman,342. 
Sveriges alsta kauda Trilobiter, J. C. 
Moberg, .59. 
Taff, J. A., Albertite-like asphalt in 
tlie Choctaw nation. 319. 
Taylor, F. B., The great ice dams of 
lakes Maumee, Whittlesey and War- 
ren, 6. 
Turner, H. W., Some rock forming bio- 
tites and amphiboles, 181 ; The occur- 
rence of roscoelite, 318. 
U 
Upham, Warren, Glacial history of the 
New England islands. Cape Cod and 
Long Island, 79. 
Upper Cambrian faunas of Mt. Stephen, 
G. F. Matthew, 382. 
