26G 
FLORIDA STATE GEOLOGICAL SURVEY. 
1893— Pumpelly, Raphael. An Apparent Time-break between the Eocene 
and the Chattahoochee Miocene in Southwestern Georgia. Am. Journ. Sci. (3) 
XLVI, 445-447, 1893. 
189.4—Dali, W. H. and Stanley-Brown, J. Cenozoic Geology along the 
Apalachicola River. Geol. Soc, Am. Bull. V, 147-170, pi; abst. Am. Geol. XIII, 
137-138 (]/ 2 p.), 1894. 
1894— Eoerste, Aug. F. The Upper Vicksburg Eocene and the Chatta¬ 
hoochee Miocene of Southwest Georgia and adjacent-Florida. Am. Journ. Sci. 
(3) XLVIII, 41-54, 1894. 
1898—Dali, W. H. A Table of North American Tertiary Horizons, cor¬ 
related with one another and with those of Western Europe, with annotations, 
U. S. Geol. Surv. 18th Ann. Rept, pt. ii, 323-348, 1898. 
1902—Maury, Carlotta J. A Comparison of the Oligocene of Western 
Europe and the Southern United States. Am. Paleon. Bull. 15, 1902. 
1902—Harris, G. D. Sections along the Apalachicola River. Contained in 
paper b} r Maury cited above, pp.. 53-58, 1902. 
1902— Vaughan, T. Wayland. Fullers Earth of Southwestern Georgia and 
Western Florida. U. S- Geol. Surv. Min. Res. for 1901, 922-934, 1902. Re¬ 
published with some additions. U. S. Geol. Surv. Bull. 213, 392-399, 1903. 
1903— Dali, W. H. Contributions to the Tertiary Fauna of Florida. Wag. 
Free Inst. Sci. Trans. Ill, pts. I-VI, 1890-1903. 
1905— Cowles, H- C. A Remarkable Colony of .Northern Plants along the 
Apalachicola River, Florida, and its Significance. Rept. 8th International 
Geographic Congress, 1904, 599, 1905. 
1906— Smith, Eugene A. On Some Post-Eocene and other Formations of 
the Gulf Region of the' United States. Science (n. s.) XXIII, 481-491, 1906; 
Am. Assoc. Adv. Sci. Proc. LV, 357-374, 1906. 
In connection with the investigation of fullers earth deposits in 
Florida by the State Geological Survey it became necessary to review 
the river section and to use these well known exposures as a starting 
point in tracing the formations into the interior. 
The Apalachicola River, formed at the Florida line by the union of 
the. Flint and Chattahoochee Rivers, flows across Florida, entering the 
Gulf of Mexico at St. Andrews Bay. From the Florida line to Alum 
Bluff a distance of twenty miles the river valley runs in a direction 
north‘of northeast to south of southwest. The valley throughout this 
part of the river’s course presents a characteristic lack of symmetry. 
The southeast side of the valley is bordered by an abrupt bluff, which, 
although variable in steepness and in height, is continuous, except 
where cut across by streams entering from the east. On the west side 
‘of the river, on the contrary, while the country is somewhat rolling, 
the slope to the river is gradual. The river valley has here a width of 
one to two miles and supports a dense growth of hard wood vegeta¬ 
tion. The valley subject to overflow is known as the '‘river swamp.” 
The river channel winds through the valley in a manner normal 
to rivers in this stage of development, having shifted its course from 
time to time, in this way forming the bluff which now borders the val- 
