LIST OF ILLUSTRATIONS 



Page 



High and Low Button Pearls Frontispiece 



Ball Pearl and Pear Pearl 12 



Japanese Culture Pearls 28 



H. M. Queen Alexandra 32 



Lady Howard de Walden 43 



Interior view of Quadrula heros, or "Washboard" shell.... 51 



Quadrula heros, or "Washboard" mussel exposed 53 



Lampsilis reclus, or "Black Sand Shell" 56 



Rock bass infected with glochidia 59 



The Quadrula heros, or "Washboard" 73 



The Quadrula ebena, or "Niggerhead" 73 



The Lampsilis rectus, or "Black Sand Shell" -76 



The Lampsilis anodontoides, or "Yellow Sand Shell" 76 



The Lampsilis fallaciosus, or "Slough Sand Shell" 76 



The Quadrula undulata, or "Three Ridge" 78 



The Lampsilis ligamentinus, or "Mucket" 78 



The Quadrula pustulosa, or "Warty-back," or "Pimple- 

 back" 78 



The Tritogonia tuberculata, or "Buckhorn," or "Deerhorn" 81 



The Quadrula lachrymosa, or "Stranger," or "Maple-leaf" 81 



The Plagiola securis, or "Butter-fly" 81 



The Lampsilis ventricosus, or "Pocket-book" 83 



The Symphonota complanata, or "Razor-back," or "Hatchet- 

 back" 83 



The Quadrula obliqua, or "Pigtoe" 85 



The Quadrula metanevra, or "Monkey-face" 85 



The Unio gibbosus, or "Ladyfinger," or "Spectacle-case" ... 85 



Gatlin's Landing 90 



"Washboard" shell from which button blanks have been cut. 93 



10 



