AN ESKER GROUP SOUTH OF DAYTON, OHIO.^ 
Earl R. Scheffel. 
Contents. 
Introduction. 
General Discussion of Eskers. 
Preliminary Description of Region. 
Bearing on Archaeology. 
Topographic Relations. 
Theories of Origin. ‘ 
Detailed Description of Eskers. .i Yiu m !* ; m 
Kame Area to the West of Eskers. 
Studies. 
Proximity of Eskers. 
Height of Eskers. 
Reticulation. 
Knolls. 
Altitude of these Deposits. 
Composition of Eskers. 
Rock Weathering. 
Crest-Lines. 
Economic Importance. 
Area to the East. 
Conclusion and Summary. . . 
Introduction. This paper has for its object the discussion of an 
esker groups south of Dayton, Ohio,^ which group constitutes a 
^ Reprinted from The Ohio Naturalist^ vol. viii, January, 1908. Given before 
the Ohio Academy of Science, November, 30, 1907, at Oxford, O., representing work 
performed under the direction of Prof. Frank Carney as partial requirement 
for the Master’s Degree. 
^ F. G. Clapp, Jour, of Geol.y vol. xii (1904), pp. 203-210. 
^ The writer’s attention was first called to the group the past year under the 
name “Morainic Ridges,” by Prof. W. B. Werthner, of Steele High School, 
located in the city mentioned Professor Werthner stated that Professor August 
F. Foerste of the same school and himself had spent some time together in the 
study of this region, but that the field was still clear forinvestigation and publication. 
Professor Foerste later made practically the same statement. The writer is 
