ELISHA MITCHELL SCIENTIFIC SOCIETY. V 



moil and excitement of the war all of these, together with all 

 the manuscript and field notes of the survey, were lost or 

 destroyed, and the industrial enterprises inaugurated or stimu- 

 lated by the ten years' existence of the survey were checked or 

 permanently suspended. 



As the tangible results, then, of the Emmons survey, we have 

 his five published reports relating to the geology and agriculture 

 of the eastern section (including; the swamp lands), and the 

 geology and mining of the "Midland Counties" as far west as 

 the Catawba river — these and, practically, nothing more. 



Organized under the same law. Professor Kerr's survey had 

 in view the same general purposes as the Emmons survey which 

 had preceded it, viz., investigations into the general geology 

 and natural history and the natural resources of the State. Such 

 being the case, it was Professor Kerr's plan to determine what 

 of the objects had been most fully accomplished during the 

 administration of Dr. Emmons, and as far as possible to avoid 

 iinnecessar}' repetition in supplementing the work already done. 

 But he found that in a study of the general geology of the 

 State, and in making a new geological map, it was necessary to 

 go over the entire State again. In the eastern region much still 

 remained to be done in determining the relative age of the 

 deposits, and in the middle and western regions, with the 

 improved meth(Kls of lithological study, it was found necessary 

 to have the rocks of both regions carefully examined. 



But l)efore this work in general geology and the making of a 

 reliable geological map could be successfully prosecuted, it was 

 necessary that the survey be in possession of a topographical 

 map of greater accuracy thati was then to be had ; and for several 

 years no small part of Professor Kerr's time was necessarily 

 given up to this topographical work. In connection with this 

 work he found it necessary to determine the elevation, lati- 

 tude and longitude of quite a number of places in the middle 

 and western regions of the State — his work in this direction 

 supplementing that done by Professor Guyot and the United 

 States Coast and Geodetic Survey. 



