eckel. 1 ALABAMA. 75 
analyses 1, 2, 3, and 4, p. 82). Other specimens are from the Rob- 
erts place, 3 miles east of Gainesville, one of which was taken from 
the top of a 30-foot bluff, others from the surface 1 mile and 5 miles 
from the river (anal}'Ses 5 and 6). 
At Jones Bluff, on the Tombigbee, near Epes station, on the Ala- 
bama Great Southern Railroad, white limestone of remarkably uni- 
form composition shows along the river bank for a distance of a mile 
or so, with an average height of perhaps GO feet. Here the bare 
rock forms the surface, so that there would be no overburden to be 
removed in quarrying. The railroad crosses the river at this locality, 
which thus has the advantage of both rail and water transportation. 
From the lower end of this exposure down to Bluffport the white 
:ock is seen at many points — e. g., below Lees Island, Martins Ferry, 
Braggs, etc. It generally has a capping of 15 to 20 feet of red loam 
md other loose materials. 
Specimens have been analyzed from Epes and Hillmans (analyses 
r, 8, and 9, p. 82). 
At Bluffport the white rock in places forms a bluff 100 feet or more 
n height along the right bank of the river for a distance of a mile 
>r more. This is the counterpart of Jones Bluff, above mentioned, 
,nd the character of the material is shown by analysis 10, page 82. 
^s at Epes, the rock extends up to the surface, so that quarrying 
vould be attended with little or no difficulty. Below the Bluffport 
luffs the easterly course of the river brings it into the territory of 
le lower strata of the formation, and the white rock does not appear 
gain below Jordans Ferry, except in thin patches at tops of some of 
le bluffs. The character of the material of these lower beds may be 
een from the analyses of specimens taken from Jordans and Belmont 
nd Roes Bluff, Nos. 11, 12, 13, and 14. The two specimens from the 
ist-named locality represent the composition of the prevailing dark- 
olored argillaceous rock and of the lighter-colored ledges. 
At Demopolis there is an important occurrence of the white rock 
xtending along the left bank from a mile above the landing to about 
miles below, with average height perhaps of 40 or 50 feet. The 
ock is remarkably uniform in appearance and probably in composi- 
ion (analysis 30, p. 83). At McDowells the main bluff is on the 
ight bank and the rock is of great purity, as shown by analysis 16. 
'he exposures continue down to Paces Landing, 9 miles below Demop- 
lis, and beyond this the bluffs are much darker in color and striped 
rith lighter bands, characteristic of the strata of the upper part of 
le formation. Thence down nearly to Moscow occur the exposures 
f these upper beds. 
Above Demopolis at Areola and Hatchs Bluff the bluish clayey lime- 
bones of the Selma division are seen in force, with the lowermost 
idges of the middle division — the horse-bone rock — capping them. 
