CONTENTS. 



Pagk 

 No. 1. — Fossil Sponges of the Flint Nodules in the Lower Cretaceous 

 - of Texas. By J. A. Merrill. (1 Plate.) July, 1895 1 



No. 2. — The Elevated Reef of Florida. By A. Agassiz. With Notes 

 on the Geology of Southern Florida. By L. S. Griswold. (26 Plates.) 

 October, 1896 27 



No. 3. — Notes on an Artesian Well sunk at Key West, Florida, in 1895. 

 Based on a Collection made by A. Agassiz. By E. O. Hoyey. Decem- 

 ber, 1896 63 



No. 4. — A Visit to the Great Barrier Reef of Australia in the Steamer 

 " Croydon," during April and May, 1896. By A. Agassiz. (42 Plates.) 

 April, 1898 95 



No. 5, — The Geological History of the Isthmus of Panama and por- 

 tions of Costa Rica. Based upon a Reconnoissance made for A. Agassiz. 

 By R. T. Hill. (19 Plates.) June, 1898 149 



