CHAPTER II. 



COMPOSITION OF THE SEA ITS SALTS POWER AND USES OF WATER 



ADVANTAGE AND DISADVANTAGE OF SALTS ANECDOTE 



DEEP-SEA SOUNDINGS BROOKED APPARATUS IMPORTANCE 



OF THE SEARCH AFTER TRUTH ILLUSTRATIONS DISCOVERIES 

 RESULTING FROM DEEP-SEA SOUNDINGS 



EFORE proceeding to the consideration of 

 the wonders connected with and con- 

 tained in the sea, we shall treat of the 

 composition of the sea itself, and of its extent, 

 depth, and bottom. 



What is the sea made of? Salt water, is the 

 ready reply that rises naturally to every lip. But 

 to this we add the question, What is salt water 1 

 or, as there are many kinds of salt water, of what 

 sort of salt water does the sea consist 1 To these 

 queries we give the following reply, which, we 

 doubt not, will rather surprise some of our 

 readers. 



Fresh water, as most people are aware, is com- 

 posed of two gases oxygen and hydrogen. Sea 

 water is composed of the same gases, with the 

 addition of muriate of soda, magnesia, iron, lime, 



(451) Q 



/6 



