238 Wisconsin Academy of Sciences , Arts and Letters. 
ridge comes to Big Creek bluff in North Linndale. There is outside of 
these beach ridges a peculiar ridge, which appears to be a compromise 
between a beach and a moraine. At its western end, near the inner bend 
of a tributary of Big Creek, a mile or so west of North Linndale, it is 
composed of gravel, and resembles in every way the beaches just north 
of it, but upon tracing it eastward the gravel changes to till, giving it 
the appearance of a low glacial ridge. This low till ridge may be traced 
through North Linndale to the bluff of Big Creek, near the bend of that 
stream, and upon crossing the creek we find a much larger ridge of till, 
one worthy the name moraine. This larger ridge is separated from 
the eastern end of the beach proper by the narrow valley of Big 
Creek, one-fourth mile or less in width. I was unable to find beach 
gravel along the inner (north) slope of the morainic ridge, further east 
than the terminus of the beach ridge, but this inner border district is 
very flat, and its clays contain few pebbles compared with the clays of 
the moraine. These features apparently indicate that the lake water 
covered the tract north of the moraine, either while the ice overhung it 
or subsequently. 
(b) The Correlative Moraine of the Leipsie Beach .— This moraine as 
indicated above, is traceable no further west than North Linndale. Both 
north and west from there the surface, aside from the flow beaches, is a 
monotonous plain with scarcely any undulation. The disappearance of 
the moraine at the point where the beach appears, leaves little room for 
doubt that the ice-sheet here terminated in a lake, and that the beach is 
of glacial age. The portion of the moraine west of the Cuyahoga does 
not show evidence that it was deposited in lake water. On the contrary, 
its structure, so far as exposed, opposes such a theory of deposition, the 
mass of the ridge being ordinary till without capping of sand or other 
water deposits. The descent is rapid toward the Lake Erie basin from 
the junction of the beach and moraine; there was probably sufficient 
depth of water to cause the ice-sheet to break up into bergs at its margin 
instead of resting on the lake bottom and forming such a moraine as it 
did in the western Erie basin, northward from the junction of the Van 
Wert beach and Blanchard moraine. 
Tracing the moraine eastward we find it passing just south of the vil 
lage of Brighton, near which it is interrupted by the Cuyahoga valley. It 
reappears on the east side of the river in Newburg and is traceable from 
there eastward, through Randall and Warrensville to the Chagrin river 
below Chagrin Falls. West of the Cuyahoga it is a single gently undu¬ 
lating ridge, about 80 rods in width and 20 to 30 feet in height. East of the 
river it consists of many short ridges and conical swells 10 to 25 feet in 
height and has a width of one to two miles or more. In places there is a 
well defined crest, but as a rule the crest is wanting. 
The range of altitude is considerable. West of the Cuyahoga the mo¬ 
raine stands about 800 feet A. T. East of the river it rises from 800 feet 
