1880.] *•'-'• [Stevenson. 



duced the comparatively gentle synclinal between Wallen's ridge and the 

 Clinch river. 



The faulting process was not abrupt ; though a geologist might think it 

 so, for to him a thousand years is literally as one day, and the whole of the 

 historical period is insignificant. But this process of elevation, fracture 

 and lateral displacement, required a vast length of time. The corrasive 

 force of the streams must have deepened the channel-ways as rapidly as 

 the rocks were raised. It is quite possible that the present system of drain- 

 age is as old as Carboniferous times, and that the disturbance producing 

 the faults led to comparatively little change in its direction. 



Stated Meeting^ September 17, 1880. 



Present, 4 members. 



President, Mr. Fraley, in the Chair. 



Letters of acknowledgment were received from the Physi- 

 cal Society in Berlin, "" Jan. 2, 1880 (102, 103, XV, ii) ; 

 Astronomical Society at Leipsig, Aug. 20 (104, 105) ; Asso- 

 ciation for irrational Science in Wiirtembnrg, April 30 (102, 

 103, XV, i, ii) ; Agricultural and Historical Society at Ly- 

 ons, March 10 (1 to 16, 18 to 20, 22, 24, 25, 27, 28, 32, 33, 

 35 to 62, 65 to 96, 98) ; Roj^al Academy, Amsterdam, Oct. 

 24, 1879 (102, 103); Massachusetts Historical Society, 30 

 Tremont Street, Boston, Aug. 12, 1880 (106, List) ; Public 

 Library, New Bedford, Sep. 1 (106, List) ; Yale College, 

 Aug. 26 (106, List) ; University of the City of New York, 

 Sep. 1 (106, List); Astor Library, Sep. 13 (106, List); Re- 

 gents of K Y. University, Albany, Sep. 3 (106, List); N. 

 Y. Historical Society, Aug. 23 (106, List) ; Penn. Histori- 

 cal Society, Sep. 7 (106, List); Maryland Historical Society, 

 Sep. 6 (106, List) ; U. S. Coast Survey, Washington, D. C, 

 Aug. 21 (106, List) ; Chicago Historical Society, Aug. 23 

 (106, List). 



Letters of envoy were received from the Geological Sur- 

 vey of India dated Geological Survey Office, Calcutta, March 

 18, 1880, signed H. B. Medlicott, Supt. ; L'Academie Roy- 

 ale des sciences, lettres et arts de Modene, dated July 31, 

 1880 ; Geologisch-botanische gesellschaft, Wien, 1. Herren- 



