CONTENTS. 
CHAPTER I. 
The Ocean 
1*AUK 
3 
Depth of the Sea . . . 
5 
Colour of the Ocean . . 
. 13 
Phosphorescence . . . 
. 14 
Local Colour .... 
17 
CHAPTER II. 
Currents of the Ocean 
. 31 
Trade-winds 
. 33 
Gulf Stream .... 
. 34 
Storms 
. 37 
Tides 
. 40 
Polar Seas ..... 
. 47 
Antarctic Seas .... 
CHAPTER III. 
Life in the Ocean . . • 
. 63 
CHAPTER IV. 
Zoophytes 
. 71 
Poraminifera . • ■ • 
78 
Infusoria 
. 89 
CHAPTER V. 

. 107 
CHAPTER VI. 
PAGE 
Corallines 121 
Tubiporinai 122 
Gorgonid;e 123 
Isidians 126 
CHAPTER VII. 
ZoANTHARIA 119 
Madreporida; 151 
Porites . 161 
Actiniaria ...... 183 
Minyadiniaus 195 
CHAPTER VIII. 
Acalehle 19 1 
Medusas 215 
Rhizostoma 221 
Vilelladaj 231 
Ctenophora 256 
CHAPTER IX. 
Echinodermata 261 
Asterias 262 
Crinoidea 272 
Echinoidse 282 
