MRS. GRIFFITHS, 



OF TORQUAY, DEVON, 



BY WHOSE ACTIVE RESEARCHES UPON A COAST PRE-EMINENT NO LESS FOR THE 

 VARIETY OF ITS MARINE PRODUCTIONS, THAN FOR ITS PICTURESQUE BEAUTY, 



THE BRITISH ALG^ 



HAVE BEEN EXTENSIVELY ILLUSTRATED, 



THE PRESENT VOLUME, 



INCLUDING MANY OF HER DISCOVERIES, 



IS DEDICATED 



WITH SENTIMENTS OF UNFEIGNED REGARD AND ESTEEM, 



BY HER FAITHFUL AND OBLIGED FRIEND, 



THE AUTHOR. 



