Contents. y 
OCTOBER NUMBER. 
Report of tlie Sub-Committee on the Upper Paleozoic 
(Devonic). By Henry S. Williams 225 
The name proposed by Sedi^wick and Murchison in 1859, 
225. — The term Erian, proposed by Sir Wm. Dawson in 
1871, 227. — The Devonian areas of North America, 228. — 
Conclusions from the study of these areas, 235.^The base of 
the Devonian, 287. — The top of the D-^vonian, 239.— Three 
distinct marine faunas in the Upper Paleozoic, 240 — Sub- 
divisions not recognizable by sharp lines, 242. — Problems 
for settlement, 245. 
Report of the Sub-Committee on the Upper Paleozoic 
( Carbonic.) By J. J. Steyenson 248 
The general grouping of the Carbonic, 248. — The Upper 
Carbonic — The upper coal measures, 249. — The middle coal 
measures, 250. — The lower coal measures, 251. — The Lower 
Carbonic— The Greenbrier, 252— The Pocono, 253.— The 
region beyond the Rocky mountains, 254. — General table, 256. 
Report of the Sub-Committee on Mesozoic. By George 
H. Cook 257 
The Triassic, 257.— The Cretacic, 259.— The Mesozoic 
R°alra, 2G1. — The post-Cretacic system, 265. — Note on the 
Mesozoic systems, 267. 
Report of the Sub-Committee on the Cenozoic (Marine) 
By Eugene A. Smith 269 
Eocene of Alabama and its sub-divisions, 270. — Grand 
Gulf Series of Mississippi, 273. — Summary descriptions of 
the parts of the Ei'CPne,275.— Oligocene,' 276. — Miocene. 277. 
— Later Tertiary. Note, embracing letters from Profs. Ileil- 
prin, Hile-ard, Newberry, Whitfield, Dall, Wincheil and Le- 
Conte, 278. 
Report of the Sub-Committee on the Cenozoic (Interior) 
By E. D. Cope 285 
Descripti'U and characteristics of the Cenozoic, 285. — 
Eocene system and its divisions, 287. — Miocene system and 
its divisions, 290. — Pliocene system and its divisions, 292. 
— Plistocene system and its divisions, 294. — Note on the 
Cenozoic series, 298 . 
Report of the Sub-Committee on the Quaternary and 
Recent. By C. H. Hitchcock 300 
Definition of Quaternjiry and general views, 300. — The 
Atlantic coast, 300. — Lower Mississippi valley. 304. — Quater- 
nary of the Interior, 304. — Table of epochs, sub-epochs and 
att.-ndant phenomena, 305. 
NOVEMBER tN UMBER. 
Slcctch of the Life and Character of Charles E. Wright, 
late State Geologist of Michigan (Portrait.) C. 
D. Lawton 307 
Notes. on the structural geology of the Carboniferous for- 
mation of Pennsylvania [ Hlustrated.] Henry A. 
W ASMUTH •} 311 
The original Chazv roclis [Maph Pres, Ezra Brainerd 
and Prof. H. M. Seely 323 
