SECOND ANNUAL REPORT—STRATIGRAPHIC GEOLOGY. 
83 
The surface shows irregular joints and conchoidal or concentric exfoliation. 
One imperfect fossil was found, a surface cast, probably a Lucina. 
This locality is about W/t. miles east of River Junction railroad station on 
the Seaboard Air Line Railway. River Junction is at mile-post 208, 208 miles 
from Jacksonville. 
From looking along the railroad this exposure seems to be topographically 
lower than the two preceding exposures. 
Excepting the two exposures described, there are none between this locality 
and River Junction excepting surficial sands and may be some red sands or 
clays and sands. There are no deep cuttings along the railroad track. 
Section at Station House, River Junction. Thickness. 
Feet. Inches. 
Chocolate or brownish soil. 1 
Sandy whitish clay .... 1 6 
Sandy whitish clay slightly calcareous in ledges. 8 
Total 
10 6 
Section near lower end of train yard. 
Feet. Inches. 
7. Humus and blackish or dark brown soil, about. 1 
6. Yellow sandy clay or marl, estimated. 3 
5. Whitish sandy clay, very slightly calcareous. 4 7 
4. Whitish sandy clay (very slightly or not at all calcareous) .... 4 
3. More calcareous white sandy clay. 1 
2. Very calcareous sandy clay. 1 5 
1. Sandy chalk very argillaceous, sand grains fine. 6 5 
Total .. 21 7 
1, at edge of sand flat of small branch. This last bed is the one from which 
Dali mentioned fossils. I found as poor casts, Isocardia, Hemicardium, Ven- 
ericardium, Tagelus, Turritella (very large species) cast of inside of large 
gastropod (Orthaulaxf) , smaller gastropods, etc. There were many specimens 
and many species but all poorly preserved. 
Between River Junction and the railroad bridge over the Apalachicola River, 
there are no rock exposures except the one already mentioned. 
Ditch running east from back of Station House at River Junction. 
A few yards east of the wagon road crossing the railroad there is a small 
fall in this ditch and here a number of fossils were obtained: 
Mammalian ribs, fragments. (These Pecten. 
ribs are probably of the manatee.) 
Large Chelepod crustacean claws, 
the animal apparently the size of 
a large lobster. 
Cardium, several species. 
Hemicardium. 
Venericardia. 
V enus. 
Lucina. 
Astarte. 
Natica (very large species). 
Orthaulaxf 
Fusus. 
Cerithium or Turritella. 
The shells are all casts, internal or external, but the fauna is evidently 
typical Chattahoochee. One fine regular Echinoid was collected. 
