ADVERTISEMENT. 



THE Editors of the Transactions of the Geological Society are 

 directed to make it known to the Public, that the Authors alone are respon- 

 sible for the facts and opinions contained in their respective papers. 



It is requested that all letters and communications to the Secretaries, 

 and presents to the Societi/, may be addressed to the House of the Geological 

 Society, No. 20, Bedford Street, Covent Garden, London. 



