164 The American Naturalist. [February, 

WINCHELL, ALEX.—Conglomerates Enclosed in Gneissic Terranes. Reprint from 
uthor, 
The Am. Geol., March ng From the 
WOLTERSTO ORFF, W. von—Die Amphibien Westpreusses. Separatabdruck aus 
den Schriften der sage Gesellschaft in Dantzig. N. F. VII., Bd. 2, Heft, 
WOODWARD, A. S.—A Comparison of the Cretaceous Fish-fauna of Mt. Lebanon 
with that of the — Chalks, Extract from the dan. and Mag. of Nat. Hist., Oct., 
1888. From the author. 
General Notes. 
GEOLOGY AND PALEONTOLOGY. 
The Tertiary and Cretaceous of Alabama.'—The long sec- 
tions furnished by the rivers of Alabama, have been the principal 
sources of our knowledge of the Cenozoic and Mesozoic geology of 
that State, and it is to Professor Eugene Smith, of Tuscaloosa, that we 
are indebted for the greater part of our recent knowledge of the subject. 
He gives the following synopsis of the formations included in the 

memoir : 
; Coral Limestone Sel E AGN 150 
( Upper. { bp | Jackson rg (Oolitoidal), . wt ue pr 
: Ciliibóome 6062244 Oe See o e os aS 
ary, Middle. | LUT ort st Spa ented tenis > ioe ar eae Wee eae ail aerate: area 
Poco { Hatchetigbee, oo ....-..+... 170 
WEE SP NS ee ee a a ee 80-85 
Belle’s Landing SN Owe Otrel a Seat 140 
| Lower. +4 Lignitic. SMART ok a aoe ou iy de 200 
: Matthew's a Landings and e ones nea A O 
Black Pas SN I00 
i eae ae yee EERE EIN AT, 25 
POO A T a I E E E EE E E N 250-275 
Cretactous: +. kotten Linesone, n ena woe iter chee ee ee 1000 
ee eee se eG ge ek a ee ee ae 300 
7 tyetaceoun, | TOND a ee ee ee ere ? 1000 
424 
The Tuscaloosa formation (McGee) is of uncertain age, some reasons 
for placing it within the Jurassic system having been adduced. This 
is the formation which has described by some of the geologists of the 
U. S. Geological Survey under the name of Potomac. Mr. McGee’s 
name, having priority by many years, must be adopted. 
1 On the Tertiary and Cretaceous Strata of the Tuscaloosa, Tombigbee and Alabama 
Rivers; by Eugene A. Smith and Lawrence C. Johnson. Bulletin U. S. Geological 
Survey, 1887, No. 43. 
