Eskers of the Kansan Exjoch. — Hershey. 201 
numerous short parallel ridges. Similar division occurs also 
near the western end, but is less distinct. 
At least a half dozen large openings have been made into 
this range of knolls and thej reveal its internal structure per- 
fectly. All its material ■ is water- worn and generally well 
rounded. No particles smaller than grains of fine sand are 
present, while large pebbles are abundant, and in many cases 
coarse cobbles and boulders. Between these extremes there is 
every gradation, and the sizes are generally well sorted. The 
stratification is very distinct, and is chiefly of that class 
known as false bedding or diagonal stratification. In addi- 
tion to the normal or original dip of the strata, portions of the 
deposit are much disturbed, apparently by settling. The to- 
pography of this range and its internal structure indicate 
that its relation to the associated drift-sheet is similar to that 
of the eskers of New England and New York. 
The Fecatoiiica belt. — The eastern end of this belt has been 
overridden and destroyed by a later ice- movement. Its de- 
posits appear in a small valley on the eastern edge of Steph- 
enson county, and thence trend westwardly as a poorly devel- 
oped line of knolls and short ridges which ascend a rock 
ridge probably 150 feet above the valley bottom, and thence 
descend into the valley of the Pet^atonica river at the village 
of Ridott. In crossing the high rock ridge, the sand de- 
posit consists of a small and narrow ridge never exceeding 25 
feet in hight, and it continues with almost perfectly regular 
contours for a mile or more, then attenuating, only to rise a 
short distance beyond in a similar ridge. About a mile and a 
half north of this narrow belt, another comes down over the 
slope of a rock ridge, and forms several prominent cone- 
shaped mounds in the valley near the river. Its extension 
westward is indicated by an undulating topography with 
gravel outcrops, trending west-northwest until cut off b}'^ the 
river. Both of these belts can be traced by a line of knolls 
to an apparent junction on the. north bank of the river about 
four miles east of Freeport. Here about 500 acres are cov- 
ered with a well marked deposit of gravel and sand which 
rises into smooth ridges and some very steep knolls 60 to 75 
feet above the river. Farther west, toward Yellow creek, the 
belt is marked by at least four distinct ridges, the northern- 
