30 HISTORY OF THE SEA. 



of the North, struggling among hills and fields of ice, and contend- 

 ing with Winter in his own everlasting dominion. Nor are the 

 ships of man the only travellers we shall perceive upon this 

 mighty map of the ocean. Flocks of sea-birds are passing and 



THE STORMY PETREL. 



repassing, diving for their food or for pastime, migrating from 

 shore to shore with unwearied wing and undeviating instinct, 

 or wheeling and swarming around the rocks which they make 

 alive and vocal by their numbers and their clanging cries. 



"We shall behold new wonders and riches when we investigate- 



