xvi List of Plates 



FACING 

 PAGE 



Natural Growth of " Coon Oyster " Clusters Between 



Tide Lines in South Carolina 232 



Shells of Arca with Young Oysters Attached . . . 262 

 Single Oysters Attached to Shells of a Small Clam . . 262 

 Holes of Long-neck Clams Very Thickly Set in a Beach 282 

 Long-neck Clams Dug from Beneath One Square Foot of 



a Flat 282 



Increase in Size in One Year of Clam One Inch Long 



When Planted 304 



Increase in Volume in One Year of Clams in an Experi- 

 mental Bed with Slight Current 304 



Box Suspended from a Raft Near a Clam Flat from 



May 15 Until October 15 of the Same Year . . . 312 

 Growth of Mya in Two Years on i-ioo of an Acre of a 

 Barren Flat 312 



