rendered by members of the Marine Laboratory staff 

 in preparing this handbook, of the kindness of Drs. 

 Wayland Vaughan and John Wells in giving advice on 

 taxonomic problems, and of the generous help given 

 by Mr, C. S. Daniels. Thanks are also gratefully ac- 

 corded for the efforts of the many faculty members and 

 students who have helped to collect the corals in the 

 Manne Laboratory's reference collection from which 

 most of the photographic illustrations in this book were 

 made. For the photograph of Meandrina brasiliensis 

 we are indebted to Mr. Frank Lyman, who kindly 

 loaned his specimen for the purpose. 



i'J 



