Chap. I. Parley tells about the Frozen Ocean 144 Icebergs 146 Parley's dangerous situation on an Iceberg 150 Chap. II. The story of a long journey over the ice with some Esquimaux 152 Chap. III. The journey over the ice, continued 167 Chap. IV. The Whale 178 The mode of catching Whales 183 Character of the Whale 187 Chap. V. A voyage on a Tropical Sea 190 Trade Winds and Monsoons 191 Chap. VI. The Waterspout 194 How Parley supposes Waterspouts to be caused 199 Chap. VII. Coral Reefs and Islands 203 Various kinds of Coral 204 The Coral-Making Polypes 206 Forms of the Coral Reefs 211 Parley's first sight of one 213 Chap. VIII. Luminous appearance of the sea 221 Animals by which it is occasioned, and the Acalepha in particular 223 Chap. IX. The Cuttle Fish 231 The Octopus 235 Chap. X. The Paper Nautilus, or Argonaut 239 How Parley saw one sailing on the sea 241 The Pearly Nautilus 245 The Nautilus Spirula 248 PART III.--WONDERS OF THE SKY. Chap. I. The Colour of the Sky 250 Chap. II. The Aurora Borealis 254 Chap. III. Parley tells of some other Meteors Parhelia or Mock Suns 263 Ignes Fatui 264 Experiment to show the cause 266 Chap. IV. Shooting Stars 267 What they are 269 Chap. V. Meteoric Stones, or Aerolites 273 How they are caused 277