it. 



1HE Voice of Ocean is constantly discours- 

 ing of many interesting and stirring 

 truths and events to those who are 

 disposed to listen. 



The particular discourse recorded in this volume 

 is that which treats chiefly of the causes and 

 effects of those grand oceanic and atmospheric 

 currents which modify the climates of the Earth, 

 and diversify the face of Nature from the Equator 

 to the Poles. 



Our information has been gathered from many 

 sources chief among which we may mention that 

 delightful book, " Maury's Physical Geography of 

 the Sea." 



R. M. BALLANTYNE. 



EDINBURGH, 1873. 



M377C92 



