Association of American Geologists and Naturalists. 167 



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capping the whole at least of the northern region is objectionable 

 from the utter extinction of life, especially of molluscous animals, 

 which does not appear to have been the case, as there is an un- 

 interrupted or unbroken series from the eocene to the present. 



Resolved, That a committee of three or more be appointed, 

 each to make a distinct report on the subject of drift. 



Prof. Emmons, Prof. Wm. B. Rogers, Mr. Vanuxem, Mr. 

 Nicollet, and Dr. Jackson, were appointed on the above com- 

 mittee. 



Resolved, That all committees which have not reported this 

 year, be instructed to report at the next meeting. 



Resolved, That a committee of one be appointed to inquire 

 through all available sources in regard to the influence of ice- 

 bergs on drift. Mr. Couthouy was appointed on the above com- 

 mittee. 



Prof Locke read a paper on the ancient earthworks of Ohio. 

 A discussion followed some remarks of the chairman (Dr. Mor- 

 ton) on this subject, between Prof. Locke, Mr. Nicollet, Dr. 

 King, Mr. Haldeman, Prof. Silliman, Prof. Hitchcock, and Prof. 

 Bailey. Mr. Nicollet related several observations relative to the 

 manners and customs of the Indians, made during a long resi- 

 dence in their country, having a bearing on the construction and 

 age of these mounds. 



Resolved, That a committee be appointed to examine and re- 

 port on the subject of western mounds. The following gentle- 

 men were appointed on this committee. 



Prof. Locke, Mr. Nicollet, Mr. John H. Blake, Dr. Engel- 

 man, Mr. S. P. Hildreth, Prof. Troost, and Dr. B. B. Brown. 



Adjourned to Thursday at 9, A.M., the afternoon being appro- 

 priated to the delivery of an address before the Boston Society of 

 Natural History, by the chairman of this Association. 



Thursday, April 28th, 9 o'clock, A. M. — The Association met 

 according to adjournment. Prof. Silliman in the chair. Pro- 

 ceedings of the former meetings were read and accepted. 



Resolved, That Mr. John L. Hayes be added to the commit- 

 tee on the subject of icebergs, and that he be requested to pre- 

 pare a separate report. 



The committee appointed reported an article relative to amend- 

 ments of the constitution, which was adopted as a part of the 

 constitution. 



