90 PROCEEDINGS OF THE PHILADELPHIA MEETING 



strike of the Paleozoic formations of eastern New Yorl£, southward on the 

 eastern side of the Catskill Mountains. 



lieiiiarks were made )jy Prof. H. P. Cashing, and reply by the author. 



SYMPOSIUM ON THE PASSAGE FROM THE JURASSIC TO THE CRETACEOUS 



Tlie Society tlieii merged into joint session with tlie Palcontologieal 

 Society for the "Symposium on the passage from the Jurassic to the 

 Cretaceous." The speakers and their contributions were as follows : 



Willis T. Lee : The Morrison ; an initial Cretaceous formation. 

 Charles C. Mook : Origin and distrilnitiou of the Morrison. 

 R. S. Lull : Sauropoda and Stegosauria of the Morrison compared with 

 those of South America, England, and Eastern Africa. 

 E. W. Berry : The Paleobota nic CAidence. 

 T. W. Stanton : The invertebrate fauna of the Morrison. 



The a1)s1i-acts and discussions of Ihosc pajiers will be found in the 

 Proceedings of the Palcontologieal Society in this volume. 



The general session adjourned at 12.35 o'clock p. m. 



TITLES AND ABSTRACTS OF PAPERS PRESENTED BEFORE THE FIRST SECTION 



AND DISCUSSIONS THEREON 



The First Section met at 2.30 o'clock, with John M. Clarke in the chair 

 and D. W. Johnson serving as secretary. 



TYPE OF RIFTED RELICT MOUNTAIN. OR RIFT-MOUNTAIN 

 BY JOHN M. CLARKE 



(Abstract) 



The Table Rolante, near Perce. Province of Quebec, is an uplifted relict of 

 the Bona venture (Devono-Carboniferous) conglomerate, bounded by sheer 

 sides and resting almost horizontally on the upturned older paleozoics. It is 

 believed that this rolling elevated plateau has' been abruptly isolated by un- 

 dermining through solution of the limestones on which it rests ; that the sheer 

 walls are not due to faulting, but to rifting along joint planes, and that by 

 persistence of this process successive blocks of large size have sunk to lower 

 levels. 



Presented in abstract from notes. 



Discussion 



Mr. William J. Miller : During the summer of 1914 there came under my 

 observation an example of rifting, the principle of which is very similar to 



