CON TE NT &. 
CHAPTER I[. 
THE OCEAN. 
Depth of the Sea 
Colour of the Sea 
Phosphorescence 
Salfness 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 ‘i ‘ 
Sponges. . 
Rhizopods 
Infusoria . 
CHAPTER V. 
CQ@LENTERATA 
CHAPTER VI. 
HyYDROZOA 
Hydride 
Corynidze 
Sertulariadz 
Calycophoridze 
Physophoridze 
Meduside . 
CHAPTER VII. 
ACTINOZOA ; ZOANTHARIA 
Antipathidze e 
Madreporide 
Coral Islands. 5 
Actinidze 
CHAPTER VIII. 
ACTINOZOA ; ALCYONARIA 
Tubiporida: - 
Gorgonidz . 
Isidinze 
Corallinze 
Coral Fishing 
Pennatulidze 
Alcyonide . 
Resencton: CTENOPHORA 
CHAPTER IX. 
ECHINODERMATA 
Crinoidee . 
Asteriade . 
Ophiuride . 
Echinidee 
Holothuroideze . 
MoLLusca. GENERAL REMARKS 
CHAPTER X. 
MOLLUSCOiDA . ‘ 
Polyzoa é . 
Tunicata : ‘ 
CHAPTER XI. 
MOLLUSCA PROPER . " ° 
ACEPHALA ‘ ‘ ‘ ‘ 
Siphonida . 
