CONTENTS 



Chapter Page 



I The Fresh-Water Pearl 13 



II The Origin of the Pearl 19 



III The History of the Pearl 29 



IV Pearls are Found in Most Rivers of the 



United States and Canada 39 



V The Life of the Unio 49 



VI Perils and Enemies of Mussels 60 



VII The Need of Laws for the Benefit of Pearl 



Hunters 65 



VIII Various Kinds of Unio Shells 72 



IX Value of Uses of Shells 87 



X How to Prospect for Pearls 99 



XI How to Make a Crow-foot Dredge Outfit. . 108 

 XII How to Use the Crow-foot Dredge Outfit. . 121 



XIII The Dip Net and Its Use 130 



XIV Other Methods of Pearl Fishing 137 



XV Methods of Opening Shells and Extracting 



Pearls 145 



XVI Why Trappers Make Good Pearl Hunters. 15 [ 



8 



