E.W. CLAYPOLE — BORING IN THE PLEISTOCENE. 151 



indicated a considerable southward extension of the system of drainage, the extent 

 of which is yet to be determined. 



This preliminary note is not the occasion for further extension oft lie subject, but 

 it may be remarked in conclusion that the valley above described is not, as that 

 through Akron, filled with gravel, but with the same tine silt, mingled with some 

 sand, which was described in the author's tract upon the Cuyahoga valley* as fill- 

 ing the glacial " Lake Cuyahoga " and being the deposit of its icy waters. This silt 

 maintains a nearly flat surface, rising almost to the level of the watershed at Summit 

 lake. 



This discovery has, moreover, enabled the author to ascertain more exactly than 

 was previously possible the outlet of this Lake Cuyahoga. Its waters extended 

 southward along the swamp above mentioned until they were confined between 

 the western wall of the preglacial valley and the moraine which gradually extended 

 westward, and so narrowed it that at present there is only room a few miles farther 

 southward for the exit of the present Tuscarawas, the canal, and the railways. This 

 overflow or " col " is only a few feet below the level of the summit, and t( > all appear- 

 ance the glacial lake that occupied it was nearly filled with this tine deposit during 

 the retreat of the ice. 



This paper was discussed by Edward Orton and Frank Leverett. 



The Society reassembled in general session. 



The following resolutions, offered by C. R. Van Hise, were unanimously 

 adopted : 



Resolved, That the Geological Society of America return sincere thanks : 

 First. To the officers of the Columbian University for their kindness 

 in tendering the use of their buildings to the Society. 



Second. To the local committee, Mr. Bailey Willis and Dr. George P. 

 Merrill, who have, by their careful and painstaking preparations, con- 

 tributed so largely to the comfort of the members of the Society and to 

 the success of the Society's meetings. 



It was also moved and voted that the thanks of the Society should be 

 conveyed to the foreign visitors for their presence at the meetings and 

 the papers which they had presented. 



Acting President Gilbert then made some announcements relating to 

 the International Geological Congress, receptions, etc., and. after a few 

 appropriate remarks, declared the summer meeting of the Society ad- 

 journed. 



*See "Thi Lake ^ge in Ohio' (E I llarke a Co., Cincinnati), for further details on this svtbji 



