TABLE OF CONTENTS 



PAGE 



Preface 3 



Suggestions for Beginners 8 



CHAPTER I. Lamp Shells and Their Al- 

 lies 9 



Mussels and Pectens 32 



Oysters and Small Clams. . 50 



IV. Chama, Cardium, and Venus 70 



86 

 118 

 130 

 163 

 197 



227, 



Other Bivalve Mollusks 



Univalve Mollusks 



Marine Univalves 



The Smaller Sea Shells 



Shells without Canals. 



Tops and Turbans 



Pierced Shells and Chitons 242 



Air - breathing Snails and 

 Slugs 263 



Shells of Lakes and Streams 299 



Biographical Index 319 



Glossary 327 



Appendix , 33 1 



Index 339 



CHAPTER XHL 



