TITLES OF PAPERS AND COUNCIL RECOMMENDATIONS 479 



the Morrison formation, for itsnpper part at least has all the characteristic features 

 of the Atlantosaurus shale. It is overlain by so-called Dakota sandstone. 



TERTIARY HISTORY OF THE BLACK HILLS 

 BY N, H. DARTON 



The next paper was read by the author: 



MARINE AND FRESHWATER BEACHES OF ONTARIO 

 BY A. P. COLEMAN 



The paper was discussed by Robert Bell, G. K. Gilbert, N. S. Shaler, 

 C. H. Hitchcock, F. B. Taylor, and H. P. Gushing. It is printed as 

 pages 129-146 of this volume. 



The following paper was then read : 



GLACIAL LAKES OF MINNESOTA 

 BY N. H. WINCHELL 



Remarks upon the subject of the paper were made by the President 

 and Robert Bell. The paper is printed as pages 109-128 of this volume. 



The last paper presented during the session was the following: 



GEOLOGY OF RIGAUD MOUNTAIN, CANADA 

 BY OSMOND E. LE ROY* 



In discussion remarks were made by F. D. Adams, N. S. Shaler, H. M. 

 Ami, Robert Bell, J. F. Kemp, and the author. The pai)er is printed 

 as pages 377-394 of this volume. 



No evening session was held, but the Society was given a reception 

 by Doctor and Mrs F. J. H. Merrill, at their residence, 95 Washington 

 avenue. 



Session of Saturday, December 29 



The Society was called to order by the President at 9.45 a m, and 

 the following administrative business was transacted : 



RECOMMENDATIONS BY THE COUNCIL 



The Council recommends : 



(1.) That the Society appoint a special committee with power to 

 eliminate undesirable material from the collection of photographs, and 



* Introduced by F. D. Adams, 



