136 Biilleiin of Laboratories of Denison University Vol. XIII] 



Furthermore, westward from I lanover the vaUey j^rows 

 broader ; at Newark, a (hstance of seven miles, it is aliout two miles 

 between the rock walls. Consequently as the margin of the east- 

 ern side of the Scioto lobe assumed new positions in its decline — 

 a long" halt has been noted in the vicinity of Newark' — this valley 

 dependency persisted. 



The details of the drift south and southwest of Claylick have 

 been studied for two miles, showing that the retreat of the main 

 body of the ice was gradual, and apparently maintaining positions 

 parallel to the convex margin mapped by Leverett. 



SUMMARY. 



A study of the Illinoian drift in this broken topography of the 

 coarser-textured and more resistant formations of the Mississip- 

 pian and Pennsylvanian periods estal)lishes the existence of 

 tongue-like dependencies of the Scioto lobe reaching out into the 

 eastward trending valleys. 



Gcologlca] Dcpartuictit. Denison Uni-i'crsify, Granville, O., 

 April, 1906. 



^ F. Leverett. loc. cit., Plate II. 



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