PRE-WISCONSIN DRIFT IN FINGER LAKE REGION 579 
INHERENT CHARACTERISTICS OF OLD DRIFT THUS PRESERVED 
Com pactness.—The obvious resistance which this old drift offers to 
stream- or wave-cutting is its most characteristic feature. The 
pressure of the overriding ice-sheet has not only rendered such drift 
very compact, but there should be seen, particularly where the original 
deposits were fine in texture, a foliation due to the pressure. Lami- 
nation also might be contemporaneous with the formation of the 
Fic. 4.—The horizon of the Wisconsin drift is fairly well defined by the vegetation; 
the steep bare slope consists of very compact bluish till. 
deposits, but in any event it would be induced by great pressure. The 
effect of the superincumbent weight of a second ice-sheet should be 
noted, where the drift has been dissected into rather vertical cliffs, in 
the tendency of the pebbles and bowlders to overhang. 
Color.—In the region under discussion ice-erosion has had, in gen- 
eral, favorable conditions for effectiveness. The highly weathered 
zone of an earlier drift-sheet would be most disturbed or eroded by 
