CONTENTS. 



CHAPTER VIII. 



Page 



The Snail —Admirable structure of its horns — The eggs of Snails — 

 Issue of the young animal — Growth of the body — Various appearances of 

 the shell — Diversity in the mouth of Gasteropods — Structure of the tongue 

 —Flexible proboscis of the Whelk— Power of some of the MoUusca to drill 

 through ashell — Ancient dyeing — Tints of the TjTian purple — Respiration 

 of water — Breathing vessels of the Snail — Various aquatic orders — The 

 Vermetus, a very remarkable creature — The Chiton — The Pteropoda — 

 The Clio borealis — Amazing number of its suckers — Power and wisdom 

 of the Creator— The Hyalea— The Cleodora 128 



CHAPTER IX. 



The Cephalopods— Their structure — The Cuttle-fish — The Calamary 

 — The Octopus — Formidable character of the Cephalopods in the Indian 

 seas — Power of the suckers with which they are furnished — The Onycho- 

 teuthis — Jaws of Cephalopod — The ink-bag — Remarkable defence of 

 these creatures — Their breathing apparatus — Their organs of vision — 

 The Nautilus — Errors exposed as to its structure — Arms of Cuttle-fish 

 — The Paper Nautilus — The Spirula —Variety of Mollusca— Migration 

 of shells 151 



CHAPTER X. 



Fossils — The term explained — Various speculations of the ancients — 

 Superstitions of our own land — Little knowledge of even intelligent 

 persons respecting them — Statements in reference to petrified Snakes — 



