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Volume XIII "^^"^^^ILW' ^^' 



BULLETIN 



OF THE 



SCIENTIFIC LABORATORIES 



OF 



DENISON UNIVERSITY 



EDITED BY 



CLARK W. CHAMBERLAIN, 



Permanent Secretary Denison Scientific Association, 



VALLEY DEPENDENCIES OF THE SCIOTO ILLINOIAN 

 LOBE IN LICKING COUNTY, OHIO. 



THE GLACIAL DAM AT HANOVER.. OHIO. 

 By FRANK CARNEY. 



THE ORIGIN OF SPRING VALLEY GORGE, 

 By EAR.L R-. SCHEFFEL. 



^Granville, OW, September, 1907. 



