Year by year the story of the Laurentian glacial lakes grows more complicated. The steadily falling waters of our youthful innocence are being replaced by a pulsating rise and fall due to rhythmic oscillations of the ice-front. One of these pulsations was long ago recognized by Fairchild2 in his “free drainage” stage of lowered escape followed by the restoration of “Lake Vanuxem.” Fairchild has frequently predicted that the real history would prove to be more complex than existing knowledge revealed.
Leverett and Taylor’s recent exposition3 of the caprices of the ice on the thumb of Michigan instantly involves western and central New York, for the moment the water levels fell below the Grand River outlet they must go out by the Mohawk. The control channels of “Lake Wayne” must be sought at either Batavia or Syracuse.
Herein is introduced a new element in the recognized . . .