GEOLOGICAL SOCIETY. 



65 



that they have been overflowed by the sea ; and they 

 appear to have had one side imbedded in the earth 

 or mud, while the other was washed by the salt water. 

 They are thinly incrusted in some places with Flustrse 

 and other zoophiles, and have recent shells of the genus 

 Balanus and Ostrea adhering to them. All are re- 

 markably hard and heavy, and of a deep black color ; 

 they do not retain any of their animal matter." 



It is further stated : " These bones are still to be pro- 

 cured in great quantity, by some labor and expense, at 

 the same place. Bones of the same kind may be ob- 

 tained at two other places : one called White bluff, also 

 on the sea coast of Georgia, the other at some distance 

 up the Savannah river." 



We have only to remark, that the relative position of 

 the bones above referred to, as'regards the waters of the 

 ocean, appears to be due to accident, or recent expo- 

 sure 5 the fractured surfaces of the bones still retain 

 their angles, and in other respects display sufficient evi- 

 dence that they have not been exposed to the action of 

 running water ; they apparently occupy the situation in 

 which they were originally deposited. 



Genus Megalonyx, Jefferson. 



M. Jeffersonii, Harlan, Fauna Americana, p. 201. 

 M. Jeffersonii, Desm. Mammalogie, p. 336. 

 Megalonyx, Jefferson, 



Trans, of the Am. Philos, Soc. vol. iv., old series, p. 246, and Wistar, same vol. 

 p. 526, pi. 1 and 2 ; Cuvier, Ossemens Fossiles, vol. v. part 1, p. 160, pi. 15, 

 3d ed. 



Vol. I — I 



