PREFACE. 25 
transmitting his observations on the habits of 
Glandina, together with the living animal, and a 
beautiful drawing of it ; and also for the species 
common in the lower parts of Georgia. To Prof. 
Jeffries Wyman, for information on the anatomy 
and habits of the animals ; and to Prof. J. P. 
Kirtland, of Cleveland, Ohio ; Dr. J. W. Mighels, 
of Portland, Me. ; Dr. Edmund Ravenel and Prof. 
Lewis R. Gibbes, of Charleston, S. C. ; Prof. W. B. 
Rogers, of the University of Virginia ; Isaac Lea, 
Esq., of Philadelphia ; John C. Jay, Esq. and B. 
W. Budd, M. D., of the city of New York; Dr. 
T. R. Ingalls, of Greenwich, N. Y. ; Dr. W. New- 
comb, of Troy, N. Y. ; Prof. G. W. Benedict, of 
Burlington, Vt. ; and T. J. Whittemore, Esq., of 
Cambridge, Mass., for their active kindness in 
affording the opportunity of examining species 
which, without their aid, would not have been 
procurable. 
To Dr. A. A. Gould, of Boston, he presents 
his thanks, for frequent and various aid and ad- 
vice, often asked for, and always bestowed with 
alacrity and liberality ; and to John S. Phillips, 
Esq., of Philadelphia, for his unremitting atten- 
tions in superintending the preparation of the 
