BACULITES. 



differences, which consist, most probably, in the external 

 characters. It should appear, from the circumstance of 

 their increasing in thickness so very gradually, that they 

 may attain to a considerable length ; the most complete 

 we have seen have been about ten inches long: and the 

 last chamber is generally several inches in length. Faujas 

 and Lamarck appear to have confounded the Hatnites with 

 the Baculites. 



