Inde<c, 
443 
Puerco formation, 266. 
Pyrites, varying rates of decomposition 
Julien, 344. 
Quartzyte with chalcedonic quartz in the 
Wealden of England, 361. 
Quaternary, use of the term, 281, 367. 
Quaternary, and recent, report of C. H. 
Hitchcock, 300; definition of, 300; At- 
lantic coast, 300; Lower Mississippi 
valley, 304; taole of epochs and sub- 
epochjs, 305. 
Quebec, rocks at, Selwyn, 134; Marcou, 
355. 
The original Chazy, 323. 
Green Qaartzyte in Nebraska, 351. 
The Taconic, as arranged by Prof. 
Dewey, 362. 
The rocks at Quebec, 134, 355. 
Chalcedonic rocks in the Wealden of 
England, 361. 
Rominger, Dr. C, on the geology and 
paleontology of Mt. Stephen, 356. 
RosenbusL'h, Prof. H., MiCL-oscopical phy- 
siography of rock-forming minerals, 
430. 
Russell, Israel C, The Dead sea, 430. 
Rutley, Frank, te.xt book on rock-form- 
ing minerals, 343. 
Saurian, new, from Kansas. Cragin, 404. 
Seely, Prof. H. M., on the Chazy rocks, 
323. 
Selwyn, A. R. C, on the Huronian of Can- 
ada, 66, 133; on the rocks at Quebec, 
134. 
Septastrea and Glypbastrea, Hinde, 127. 
Serpentines, a class of eruptives, 179. 
Shinarump formation, 267. 
Smith, Eugene A., report on the Marine 
Cenozoic, 269. 
Spencer, J. W., on lake beaches at Ann 
Arbor, 62; on great lakes, 346, 370; 
Glacier erosion in Norway, 432 
Sponges from Spitzbergen, Hinde, 128. 
St. Croix, use of the term, N. H. Win- 
chell, 209. 
Stevenson, J. J., report on the Car- 
bonic. 2 i8. 
St. Lawrence River, its ancient course, 
346. 
Stockbridge and Sparry limestones, fos- 
sils of, 16. 
Stratigraphy and lithology of the Ta- 
conic, Marcou, 16. 
Streeruwitz, W. H., ancient mining in 
Texas, 361. 
Sub-division of the Devonian, 242. 
SymouQs, J. A., wind-blast of avalanches, 
132. 
Synopsis of the conclusions of C. D. Wal- 
cott on the use of the term Taconic, 
215. 
Synopsis of the flora of the Laramie, 
Ward, 56. 
Systems of the Archaean, 153. 
Taconic, use of the term, N. H. Winchell, 
au8. 
Taconic system, principles of its adver- 
saries, Marcou, 10, 67; Trilobites of, 
described by Emmons, 10; Fossilifer- 
ous limestones of, 2i); Mistakes of Em- 
mons concerning, 20; Compared to the 
Quebec group, Selwyn, 62, 135; strati- 
graphy and nomenclature of, 67; when 
first named, 354; Walcott's conclu- 
sions, 215; note on by N. H. WincheU, 
220. 
Taconic literature, some forgotten, 
Vogdes, 352; first publication, 224. 
Taconic nomenclature, adopted at Bos- 
ton. Hyatt, 137, 
Taconic rocks, as arranged bv C. Dewey 
in 1819 and 1824, 352; by Emmons in 
1842, 352. 
Tertiary of eastern N. America, Meyer, 
88. 
Texas geologic and scientific association, 
361. 
Three formations of the middle Atlantic 
slope, McGee, 129. 
Ticholeptus Beds, 291. 
Todd's Fork, Ohio, geological section, 
Foerste, 416. 
Top of the Devonian, 239. 
Topley, Wm., general secretary of the 
committee of organization. Interna- 
tional Congress of Geologists, 66. 
Torre 1, Otto, M., on the Cambrian-Silu- 
rian, 365. 
Traqnair, Dr., relations of relics of fossil 
fishes, 133. 
Triassic in America, 257, 261. 
Truckee formation, 293. 
u 
Ulrifh, Mr. E. O., correlation of Lower 
Silurian horizons, 39; Sketch of Prof. 
A. H. Worthen, 114. 
Unconformities in the Archaean, 157. 
Upham, Warren, sketch of Henry Carvill 
Lewis, 371. 
Upper Paleozoic (Devonic), Report of H. 
S. Williams, 225; name proposed by 
Sedgwick and Murchison, 2:^5; term 
Brian proposed by Sir Wm. Dawson, 
227; Devonian areas inN. America, 228; 
Conclusions from study of these areas; 
The base of the Devonian, 237; The 
top of the Devonian, 289; Problems 
for settlement, 245; [Carboni ] Report 
of J. J. Stevenson, 2i8; General group- 
ing of the Carbonic, 2.8; The Upper 
Carbonic, 249; The Lower Carbonic, 
252; The region beyond the Rocky 
Mountains, 254; General table, 256. 
Utica slates of Dudley Observatory not 
Taconic, Marcou, 72. 
V 
Valentine quartzyte, 351. 
Vermilion cliff formation, 267. 
Vogdes, A. W., some forgotten Taconic 
literature, 352. 
Volcanic dust compared with geyserite 
from Nebraska, Hicks, 64. 
w 
Waagen, Dr. W., on the Carboniferous ice 
age, 336. 
Wa isworth. Dr. M. E., 66. 
Walcott, C. D.,his work in the Taconic, 
215; reviewed by Marcou, 10, 67; re- 
viewed by N. H. Winchell, 220. 
