INDEX. 
Acadian series, trilobites of, 3. 
Amyzon beds, 289. 
Am. Asso. Adv. Sci., 138, 359. 
American Committee of the International 
Congress of Geologists, 189. 
American Geological Society, 360, 370. 
Annelid teeth of the Medina, Foerste, 
416. 
Antilles, Archisin rocks of, Frazer, 421. 
Anti Evolution, Martin, 481. 
Antiquity of man ; some results ot the 
discussion, 51. 
Ann Arbor, post-glacial geology of, Wool- 
dridge, 35 ; Lake- beaches at, Spencer, 
62. 
Appomattox formation, McGee, 130. 
Archeean, fossil plant of, Britton, 58. 
Aichtean formations, opinions of Ameri- 
can Geologists, 146 ; Divi ions pro- 
posed, 153; Horizons of non-conform- 
ities. 157; How sub-divided petro- 
graphicaliy, 159 ; Eruptives of the 
Arcliaian. 160; The use of the term He- 
bridian, Dimetian and Arvonian, 163; 
How distinguished from later crystal- 
lines, 164; Mineral constitution indic- 
aiive of age, 168; Origin of the lower 
stratified crystallines, 171; Life evi- 
oences. 173; Is Eozoon of organic ori- 
gin? 175; Are serpentines eruptives? 
179; Conclusions ot the reporter, 181^ 
Whitney & Wadsworth's "The Azoic 
system and its sub-divisions," 184; 
The English Committee's report on the 
Archffian, 187. 
Arenicolites, 2. 
Arvonian, as a term in theArchsean. 163. 
Ashburner, Chas. A. petroleum and nat- 
ural gas in N v., 430. 
Atlantic coast. Quaternary of, 300. 
Atlantic group of the Tertiary, 93. 
Azoic system and its sub-divisions, 181. 
B 
Barrande's discovery of the primordial 
fauna in Britain, 77; Opinion of the 
Taconic, 77. 
Base of the Devonian, 237. 
Bath, England, 419. 
Barrois, Dr. C, the terms of the Cam- 
brian, 366. 
Beaches of Long Island, Bryson,P4, 137. 
Beachler, Chas. S. on the Keokuk group, 
407. 
Beginnings of American science, Goode, 
429. 
Benton formation, 264. 
Bell, Dr. R., on the Huronian system of 
Canada, 361. 
Blake, J. H.. nomenclature of the Cam- 
brian and Silurian, 366. 
Bonney, Prof. T. G. on the Archrean, 
421:. 
B ainerd, Pres. Ezra, on the Chazy 
rocks, 323. 
Brauner, Prof. J. C , 362; Glaciation in 
the Lackawanna- Wyomingregion, 430. 
Bridger formation, 288. 
Fritish Association for the Advance- 
ment of Science, 5Sth meeting. 419. 
Britton. Dr., Archjean plant, from the 
limestone of Sussex county, N. J. , 5K. 
Broadhead, G. C. geological notes in 
Texas, 433. 
Bryson. John, on the beaches of Long 
Island, 04, 137. 
Cambrian in America, according to vthe 
report of the American Committee 
212; according to C. D. Wal<-ott. 218. 
Carboniferous formation in Pennsylva- 
nia, Wasmuth, 311. 
Cenozoic (marine) Report of Eugene A. 
Smith, 269; Eocene of Alabama, 270; 
Grand gulf series of Missisi-ippi. 273; 
Oligocene, 276; Miocene, 277; Later 
Tertiary. 278. 
Cenozoic (interior\ Report of E. D. Cope, 
285; Characteristics of the Cenozoic, 
285; The Eocene system, 287; Miocene 
system. 290; Pliocene system, 292; 
Pli.stocene system 294; Note on the 
Cenozoic series, 298. 
Central continental area of the Devonian, 
232. 
Charleston earthquake-tremors. Clay- 
pole, 136. 
Chamberlin.Pies. T. C. Ethical functions 
of scientific study, 380. 
Chazv rocks, the or guial, Brainerd and 
Seely, 323. 
Claypole, E. W., o'' earthquake-tremors 
at Charleston, 135. 
Clark, Dr. Wm., collection of fossil-fishes 
at Berea, 62. 
Coal Measures at Des Moines, Iowa, 
Keyes, 23; of central Iowa, Keyes, 396; 
Fauna of the, Keyes. 432. 
Coals of Colorado, Newberry, 429. 
Columbia foimation. McGee, 130. 
(Comanche formation, 263. 
Conclusions of the- report on the Ar- 
chajan, 181; of the report on the 
Lower Paleozoic, 212; of the report 
on the Devoni-in, 235. 
Congress ge>logique international, 431. 
Considerations sur les fossiles decrits 
comme Algues, MaiUard, 54. 
Cope, E. n., report on the Interior Cen- 
ozoic 285; on the Mesozoic, 261. 
Cook, Geo. H., report on the Mesozoic, 
257. 
Correlation of theLower Silurian, Ulrich, 
39. 
Cragin, F. W., on a new saurian, 404. 
Cretacic in .\merica, 259, 263. 
Crystalline rockslater than the Archaean, 
164. 
Crystnlline schists, 367. 
Cummins, W. T. on Carboniferous in 
Texas, 138. 
D 
Dana, J. D , evidences of the age of the 
T,tconic rocks, -Marcou, 69; Opinions 
on the nomenclature of the Lower 
Paleozoic, 198. 
