yi PREFACE. 



J. Hamilton Couper, Esq., of St. Simon's Island, Georgia, lias also furnished 

 me with several Serpents of that state; and to him I owe a knowledge of the 

 Gopher Snake, perhaps the largest and most beautiful of our Serpents. 



■ '\ 

 Professor Troost of Nashvilk, to ^hom I owe so much in other departments 



'^- '. 

 of Herpetology, has sent me several Serpents, and furnished we with a drawing 



of his Trigonocephalus atrofuscus. 



f 



My friend Dr. Dekav has also procured me a good many Serpents, and 

 furnished me with some excellent remarks on their habits. 



To Professor Kirtland of Ohio, I give my thanks for a beautiful undescribed 

 Rattlesnake of the western country. 



JOHN EDWARDS HOLBROOK. 



Medical College, Charleston, South Carolina, 1S42. 



