450 G. D. Huhhard — Finger Lake Bed in Ohio. 



have taken place, shows that the Algonquin beach is not tilted 

 south of a line through the middle of Lake Michigan and 

 Niagara Falls. In the same paper he shows that the older 

 Iroquois beaches are tilted more than the Algonquin in the 

 same latitudes and that the tilting extends further southward 

 for the Iroquois beach. He shows that the tilting is greatest 

 farther north and decreases southward, but he is unable to 

 locate any southern limit for the tilting. 



That the existence of Craigton Lake began earlier than that 

 of any of those preceding, even Lake Erie, is easy to believe 

 because of its location with reference to the retreating ice. 

 It was not an ice-front lake but several miles south of the 

 divide and twenty-live miles from the Maumee beach. Its 

 site would be uncovered even before that of Lake Maumee. 

 That tilting in the Lake region began early is also shown by 

 the fact that Craigton Lake shorelines are tilted more than 

 beaches such as those of the Algonquin and Iroquois water 

 planes. The warping in Craigton Lake lines amounts to 4 

 feet in a mile and is quite uniform for the eighteen miles of 

 length. It may be a little steeper in the last two or three 

 miles at the north end but probably is not. The apparent 

 increase in rate is more likely due to aggradation with glacial 

 outwash or to the building of a fan on the Pleasant Home delta. 



Craigton not only began, but probably completed its history 

 as a lake before the tilting occurred; aconsiderable part of its 

 tilting must have occurred before the Iroquois beaches were 

 tilted and all of it before the Algonquin was tilted, because in 

 the first place its tilting is greater than that of Iroquois ; and 

 in the second, Algonquin tilting did not proceed so far south. 

 Had the water remained in Craigton during the tilting, it 

 must have spilled over southward. There can be found no 

 evidence of static water work on the hills above the recorded 

 beach levels at the southern end. If water stood higher here, 

 then many tracts, low between moraine hills but higher than 

 960 feet, should have been under water and should attest that 

 fact by sorted drift, lake clays, and possibly by black earth 

 deposits of palustrial origin. Nothing of the sort can be found. 



Because the outlet was in the middle portion of the lake the 

 southern part would not be drained by the tilting. Drainage 

 possibly fairly well established would be interfered with ; 

 swampy conditions would develop and will persist until more 

 perfect drainage is attained. Black, peaty earth, very abundant 

 in southern part, confirms the belief that this end of the lake 

 was long swampy. In fact artificial ditching has but recently 

 put it into agricultural condition. Hundreds of acres of 

 onions are now grown on the black flats that are sufficiently 

 drained. Water does not stand anywhere on the plain but 

 swampy conditions are not entirely removed. 



Oberlin College. Oberlin, Ohio. 



