POSTSCRIPT. 
1. Since the body of this number of the Journal was printed, we have 
received an interesting letter from Cuartes Lyset, Esq., dated Feb. 
4th, at Claiborne, (Ala.) addressed to B. Silliman, Jr., from which we 
make the following extracts : 
& * As you expressed a wish to receive as early a notice as possible, 
_ of some of the results of my geological explorings in the South, I will 
send you a brief statement of several conclusions to which I have 
__ come since I entered Georgia and Alabama. 
] - “1st, I have visited some of the principal localities where the bones 
of the gigantic Cetacean (the Zeuglodon) have been discovered in 
Clarke County, Ala., in the fork of the rivers Alabama and Tom- 
beckbee, and find the geological position of the bones to be every 
where the same, namely, in the white tertiary limestone of the Eocene 
period, corresponding in age to that of the Santee River, in South Car- 
olina, or of Burke County, in Georgia, or that of the upper part of the 
celebrated bluff of Claiborne, in Alabama. 
2d. The beds in which the remains of the Zeuglodon occur, are 
above the level of those Claiborne deposits, so well studied and descri- 
bed by Mr. Conrad in 1832-3, as containing several hundred perfectly 
preserved species of lower tertiary shells. 
“ 3d. Part of the head of the Zeuglodon and vertebra, extending to a 
length of 30 feet, were procured by Mr. Koch in 1845, ata place which 
~ I visited, 44 miles southwest from Clarksville, Ala., in company with 
Mr. Pickett, who assisted in the exhumation made by Mr. Koch. But 
the main body of the vertebra, (as I learn from the same gentleman, 
and other persons,) which entered into the skeleton exhibited in the 
United States in 1845, under the name of Hydrarchos, were procured 
in Washington County, Alabama, fifteen miles distant, in a direct line, 
from the place where the head was discovered.* 
“4th. I have information of more than forty other localities, where 
separate bones of the same huge animal have been met with, in Clarke 
and Washington counties, all in such perfect condition, and each so 
bulky and so distant from the rest, that J can hardly doubt their having 
belonged to as many distinct individuals. 
* Another correspondent (S. G. Houston, Esq.) gave us a confirmation of Mr. 
Lyell’s statement, under date of Washington County, Ala., Nov. Ist, 1845. Mr. 
H. says that the fossils were found, a bone here and a bone there, scattered over 
a space of 25 miles by 10 or 12.—Eds. 
Secoxp Srrizs, Vol. I, No. 2.—March, 1846. 40 
