BASALTIC FOEMATION IN ICELAND. 



97 



species, at least 16 of which arc of verj' doubtful value. I 

 was unable to extract a large fusiform shell, which was much 

 cracked, and in an almost inaccessible position ; but I made a drawing 

 with measurements, before attempting to remove it, and saved the 

 greater part of it. This can be reproduced when necessary. 





CO 



Chine, 



2 





Dr. Gw}'n Jeffreys has some valuable remarks to make upon these 

 fossils ; but as I believe that further specimens have been submitted 

 to his inspection from abi;oad, I trust he will be induced to com- 

 municate a paper on the subject, which I forbear in any way to 

 forestall. I think, however, I should, for various reasons, be in*^ 

 clined to assign a greater age to the deposit, from its general 



