208 Association of Geologists and JYaturalists. [Oct., 



AMERICAN ASSOCIATION OF GEOLOGISTS AND 

 NATURALISTS. 



The association convened according to adjournment, at the 

 Rooms of the Natural History Society, in Boston, at 10 o'clock, 

 A. M., Sept. 20. In consequence of the decease of Dr. Amos 

 Binney, who had been elected to preside at this meeting, the asso- 

 ciation proceeded to the choice of a President pro tem., until a 

 regular nomination by the Standing Committee might be made, 

 and Dr. J. C. Warren, of Boston, was chosen. The preliminary 

 business being partially transacted, the association adjourned, to 

 meet at 4 P. M. 



The meeting in the afternoon was spent in the completion of 

 preliminary business; and in consequence of the prospect of a 

 larger attendance than the rooms would accommodate, it was 

 agreed to adjourn, to meet at the Malboro' Chapel, at 10 A. M. 



An invitation was given by the Hon, Nathan Appleton, to 

 spend the evening at his house. 



The association met according to adjournment, in the Marl- 

 borough Chapel, Tuesday morning at 10 o'clock. 



The meeting was called to order by Dr. John C. Warren, of 

 this city. Chairman, pro temjwre. The proceedings of Monday 

 were then read by the Secretary, Dr. J. Wyman. Professor Sil- 

 liman, of the Standing Committee, after making a few remarks 

 relative to the death ot Dr. Binney, nominated Professor William 

 Rogers, as permanent Chairman of the present meeting, and he 

 was unanimously elected. Previous to the commencement of the 

 regular proceedings, Mr. Teschmacher of this city, informed the 

 members that large masses of the Lake Superior Copper ore were 

 left at the Providence Railroad Depot, and that individuals inter- 

 ested might have an opportunity of examing them. 



A paper was presented by Mr. B. L. C. Wales upon the for- 

 mation of the Mississippi 13h]fF, near Natchez. This paper, in 

 the absence of Mr. Wales, was read by the Secretary. 



There was a large number of specimens from the locality, of 

 Favossitej-, carnelians, jaspers, ochres, fossil woods, &c. 



The locality examined extends from Vicksburgh to Baton 

 Rouge, presenting an average breath of 12 miles. It is certain 

 that this extensive tract was formed chiefly by diluvial agency; 

 the lowermost depositions are certainly due to this agency; they 

 contain quartz, agate, carnelian, jasper, and various silicified co- 

 rals. 



The rocks from which these come do not form the basis rocks 

 of this S. West portion of the Union; where is then their origin? 

 We have to go more than 1000 miles in a N. West direction to 

 find their origin; some of tlie trap rocks of Lake Superior are 



