126 



PROCEEDINGS OP THE ACADEMY OP 



also give secfions of the Cretaceous formations as seen in Alabama and New 

 Jersey. For the Alabama section we are indebted to Prof. A. Winchell, of 

 Ann Arbor, Michigan, who has devoted much time to the study of the Cretaceous 

 rocks of the South. Most of the facts given in this section are contained in an 

 interesiing paper read by Prof. Winchell, before the American Association for 

 the Advancement of Science, at the last meeting, held in Albany, N. Y. As here 

 given, however, this section has been constructed from information kindly 

 furnished us by Prof. Winchell, in advance of the printing of the Proceedings 

 of that meeting. 



The New Jersey section we have compiled from the reports of Prof. Ketchel 

 and Prof. Cook, Geologist and Assistant Geologist of that State. In the in- 

 stances where the positions of fossils were not given in the reports above alluded 

 to, we have been guided by information kindly furnished by Prof. Cook, in seve- 

 ral communications received from him. 



Alabama Section, from facts communicated by Prrf. A. Winchell. 



* According to Prof. Tuomey this bed soraeiimes attains a thickness of 1,000 feet. 



[May,, 



