I 



GLACIAL WATERS IN CENTRAL NEW YORK 59 



15 Succeeding the Dana and Dawson episodes the next long- 

 permanent water level in the Ontario basin is that of Lake Iroquois. 

 Its level was determined by the pass at Rome leading over to the 

 Mohawk valley. About Syracuse the Iroquois shore-line features 

 have an altitude of 430 to 440 feet; but are about 460 feet near 

 Rome [pi. 42]. 



Conclusion. It does not seem possible that the history of the 

 glacial waters in central New York can be any more simple than 

 given in the above outline. On the contrary it is probable that 

 future and more detailed study will discover new elements in the 

 glacial history and find the series of events more complicated. It 

 is therefore possible that some of the above theory may be wrong. 

 However, there is no doubt of the existence of the several planes 

 of glacial waters as discriminated above, nor of the production of 

 the channels by ice border rivers. These facts of observation will- 

 stand even if the interpretation may change. 





BIBLIOGRAPHY 



The following list includes the more important writings which 

 refer to the physiographic and Pleistocene features of western- 

 central New York. Papers referring only to the stratigraphy or 

 paleontology of the region are not included. 



For convenience of reference in the preceding text the titles are 

 given a numerical order, the arrangement being chiefly, though not 

 wholly, chronologic. 



1 Dwight, Timothy. Travels in New England and New York. New 



Haven 1822. p. 33-128. 



2 Eaton, Amos. Survey of the District Adjoining the Erie Canal. Alban5N x 



1824. 



Conrad, T. A.; Hall, James; Vanuxem, Lardner. Annual Reports on 

 the Geology of New York. 1837-41. 



Vanuxem, Lardner. Geology of New York : Survey of the Third Geolog- 

 ical District. Albany 1842. p. 2 12-47. 



Hall, James. Geology of New York : Survey of the Fourth Geological 

 District. Albany 1843. p. 3 18-413. 



Johnson, Laurence. The Parallel Drift Hills of Western New York. 

 N. Y. Acad. Sci. Ann. 1883. 2:249-66. 



Chamberlin, T. C. Terminal Moraine of the Second Glacial Epoch. 

 U. S. Geol. Sur. 3d An. Rep't. 1883. p. 35 1-60. 



Gilbert, G. K. Post-glacial Anticlinal Ridges near Ripley and Cale- 

 donia, N. Y. Am. Geol. 1891. 8:230-31. 



The History of Niagara River. N. Y. Com. State Reservation 



at Niagara, 6th Rep't. 1890. p. 6 1-84. 



