ADVERTISEMENT 



FROM THE PUBLISHER. 



The subject of the present Volume is one upon 

 which we remarked before that we had not much 

 indulged, and that for various reasons ; in particular, 

 because we did not incline to load our interesting 

 Work with common-place illustrations which have 

 served the purpose of all the publications on Ich- 

 thyology lately issued from the Press ; and the vast 

 extent of the subject, with our scanty knowledge 

 of their habits, have deterred us from devoting a 

 large portion of our space to this department of 

 Zoology. 



