400 
Index. 
Reef-builders, the, L. E. Hicks, 297, 
Rights of intelligence under paid service, 
245, , ^,. 
Ringueberg, Eugene, N. S., on the Niagara 
shales, 264. 
River-lake system of Mich., Wooldndge, 
143. 
Rocks— 
And minerals of the W. Indies, 61. 
Pulgui-ite from Mt. Thielson, 125. 
Periodotyte from Kentucky, 125. 
Quartz basalt from Lassen's peak, 125. 
Diabase dyA-es of the Rainy lake region, 
199. 
Names in yte, 249. 
Nepheline in Brazil, 259. 
Archc-ean of Missouri, 280, 3(!?>. 
Norytes and Gabbros, 389. 
Duluth gabbro, 342. 
Rolfe, Chas. W., 138, 
Rominger, C, New primordial fossils, 61. 
Rounding of pebbles by streams, Bonny, 
260, 
Russell, E. W,, On the salt well at Lin- 
coln, Neb., 31; Peat in Nebraska, 137. 
Salisbury, Chamberlin and, on the drift- 
less area, 122. 
Salt well at Lincoln, Neb,, F. W. Russell, 
131. 
Sand boulders in the drift, or subaqueous 
origin of the drift, J. W, Spencer, 120. 
Sceptropora,SL new genus of bryozoa, with 
remarks on Helopora, Hall, and other 
genera of that type, E. O, Ulrich, 228. 
Sea-coast swamps, preliminary report 
on, N, S. Shaler, 258. 
Seeley, H. S., 338. 
Shimek, B., fossils of the loess at Iowa 
City, 149. 
Siphonocrinus, Miller, nov. genus, 263. 
Snow Hall, Lawrence, Kas., 134. 
Some American norytes and gabbros, 
Herrick, Clarke and Deming, 339. 
Some investigations regarding the con- 
dition of the interior of the earth, E. 
W. Claypole, 382. 
Spencer, J. W„ 120, 198. 
Spiral bivalve from the Waverly of Pa., 
Chas. E. Beecher, 60. 
Spirals in brachiopoda, position of, Nor- 
man Glass, 327, 
Springer, Frank, 135. 
Streptindytes acervularias, Calvin, 27. 
Structure and affinities of the genus Par- 
keria, Carp., H.Alleyne Nicholson, 255. 
Summit plates in blastoids, crinoids and 
cystids, Wachsmuth and Springer, 61. 
Subterranean commotion near Akron, 
O., E. W. Claypole, 190. 
Subscribers to Geological Map of Europe, 
252 337. 
Swindling naturalist, 67, 135, 262. 
Taconic sj'stem, N.H.Winchell, 162,173; 
Defined by Emmons, 163, 235, 348; 
The lost map of Emmons, 160; S. A. 
Miller on, 235; And the Vermont re- 
port, 329. 
Taconic of Georgia and report ongeology 
of Vermont, Jules Marcou, 328. 
Taconic question, the, A. Winchell, 347. 
Tahitian barrier reefs, 301. 
Tariff on Geological Map of Europe, 253; 
On lapidary's machine, 396. 
Taylor, W. Edgar, Geology in prepara- 
tory schools, 316. 
Thompson, David, 256. 
To all American geologists; Appeal of 
Persifor Frazer, 250. 
Trenton limestone as an oil rock, 133, 
Tyrrell, J. B., 256. 
u 
Ulrich, E, O., Lower Silurian horizons, 
100, 179, 303; On Sceptropora, a new 
genus of bryozoa, with remarks on Hel- 
opora, Hall, and other genera of that 
type, 228; Nomenclature of Cincinnati 
group fossils, 833, 
Unconformities of the Animike in Minu., 
A. Winchell, 14. 
University of Neb., 136. 
Untersuchungen ueber Gesteine und Min- 
eralien aus West Indien, J. H. Kloos, 61. 
Upham, Warren, 64, 67, 337. 
Use of the termination yte for names of 
rocks, 249. 
Vertical range of fossils of the Hamilton 
in western Ontario, S. Calvin, 81, 
Volcanic eruption in northern Cal., and 
its peculiar lava, J, S. Diller, 125. 
w 
Wachsmuth and Springer, 61, 132. 
Wadsworth, M. E., 345. 
Washington, Iowa, Deep well at, 28, 
Wasmuth, Henry A., Pittsburg coal bed, 
272. 
Western society of naturalists, 136. 
West Indies; Rocks and minerals, J. H. 
Kloos, 61. 
White, C. A., Later Cretaceous in Iowa, 
221; Contributions to palaeontology 
of Brazil, 257. 
White, Z. L., 65, 
Winchell, Alexander, Unconformities of 
the Animike in Minn., 14; Extinct pec- 
cary in Michigan, 67; Pressure of con- 
tinental glacier, 139; The Taconic ques- 
tion, 847. 
Winchell, H. V., minerals in Minnesota, 
132, 
Winchell, N. H., Animike slates and 
Ogishke conglomerate equivalent to 
the Huronian, 11; Some objections to 
the term Taconic considered, 162; A 
great primordial quartzyte, 173; Am- 
erican geological society, 394. 
Wood, Harrie, 122. 
Wooldridge, C. W,, River-lake system of 
Mich., 143. 
Wright, G. Frederick, 68, 
