TITLES OF PAPERS 155 



announced that, on account of a conflict in the program, the papers of 

 Group B of the Geological Society of America had been transferred to 

 the Paleontological Society for reading. 



The first paper of Group B was presented by the author and illustrated 

 by lantern slides; 10 minutes. Discussed by E. 0. Ulrich and A. W. 

 Grabau, with replies by the author. 



ALEXANDRIAN ROCKS OF NORTHEASTERN ILLINOIS AND EASTERN 



WISCONSIN 



BY T. E. SAVAGE 



There was next presented by the author, illustrated by diagrams and 

 lantern slides, a paper transferred from Group A of the Geological 

 Society of America to tlie Paleontological Society in order that all 

 papers bearing on the black shale problem should be read in succession. 

 The discussion on this paper was postponed until all of those dealing 

 with the subject had been read. 



DIASTROPHIC IMPORTANCE OF THE UNCONFORMITY AT THE BASE OF THE 



BEREA SANDSTONE IN OHIO 



BY H. P. GUSHING 



The second paper in the black shale discussion was read by the author 

 and illustrated by drawings; 30 minutes. 



KINDERHOOKIAN AGE OF THE CHATTANOOGAN SERIES 



BY E. O. ULRICH 



At 5.30 the Society adjourned for the day. Wednesday evening the 

 members attended the annual dinner with the Fellows of the Geological 

 Society of America at the Hotel Walton. 



Session of Thursday, December 31 



Thursday morning the section met at 9, with Ibe com])letiiin of the 

 black shale and related papers first on the pi-ograni. Vice-President Van 

 Tngen presided. 



Tile first paper was presented by the senior aullior and was illustrated 

 by di'awings; 10 minutes. 



