The Physical Geography of New York State
ISBN 1151781223 (1-151-78122-3)
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Softcover, RareBooksClub.com, 2013
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Book summary: This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1902 edition. Excerpt: ... at present the most probable; but all that can now be said with certainty is that they antedate the last advance of the ice. The question of these gorges has a very important bearing upon the whole subject of the drainage history of central and western New York. Were the gorges due to the interglacial conditions or to an uplift of preglacial times? Former Condition Of The Finger Lake Valleys.--Much has been written upon the origin of the Finger Lakes of New York.1 There is uniformity of agreement that they represent preglacial valleys, and the later workers are agreed that they represent preglacial valleys in some of which, at least, the streams flowed northward. There is a further agreement that they have been transformed to lakes by glacial action, though there is no general agreement as to the exact cause for this change. It seems certain that at least Cayuga, Seneca and the larger valleys to the west of these, which now enter Lake Ontario through the Oswego, had a more direct northward course in preglacial times. As early as 1843 Hall suggested1 that, prior to the formation of the Cayuga marshes, the outflow of Lakes Cayuga and Seneca was into the Ontario Valley through Port Bay. North of the Finger Lakes there is a broad valley transformed to a bay, which seems very likely to be the preglacial continuation of one or several of these valleys, though now choked with an extensive accumulation of drift, some of it in the form of drumlins, through which the Seneca River now finds its way in a winding course. This region is so drift-filled in places that there is no surface sign of a preglacial valley. With reference to the cause for the transformation of the north-south valleys to lakes there are two opposing explanations. One is that...
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