CONTENTS. 



CHAPTER I. 



THE OCEAN 



Depth of the Sea 

 Colour of the Sea 

 Phosphorescence . 



Saltness of the Sea 



CHAPTER II. 



CURRENTS OF THE OCEAN 

 Trade Winds 

 Gulf Stream 

 Tides 



The Arctic Regions 

 The Antarctic Regions 



CHAPTER III. 

 LIFE IN THE OCEAN 



CHAPTER IV. 



PROTOZOA . . . 

 Sponges 



Rhizopods . . 



Infusoria 



CHAPTER V. 



CCELENTERATA 



CHAPTER VI. 



HYDROZOA 

 Hydridie 



Corynidae . . . 

 Sertulariadae . . 

 Calycophoridas . . 

 Physophoridse 

 Medusidae . 



CHAPTER VII. 



