The physical geography of New York state . , 1-Ih; AIIIIT. , XV, ].-!i.,, :!.li;-::.i.»: Mull. |. \ll. 1891 Ami-r. XVII. ;, 238-241; Amer. Qeol., XVIII. 1896, I«•.. 177; M-imc. x\ s. Geol. Survi-y. !*!» bi> prr\ articles on (ihicial \ ciin !• fmind. 248 The Physical Geography of New York State of the Great Lakes beaches, has by later investigation con-tributed a great deal to our knowledge of the eastern has traced the Ontario shore line in New York (), and pointed out its relation to the Mohawk outflow:he has proved th
The physical geography of New York state . , 1-Ih; AIIIIT. , XV, ].-!i.,, :!.li;-::.i.»: Mull. |. \ll. 1891 Ami-r. XVII. ;, 238-241; Amer. Qeol., XVIII. 1896, I«•.. 177; M-imc. x\ s. Geol. Survi-y. !*!» bi> prr\ articles on (ihicial \ ciin !• fmind. 248 The Physical Geography of New York State of the Great Lakes beaches, has by later investigation con-tributed a great deal to our knowledge of the eastern has traced the Ontario shore line in New York (), and pointed out its relation to the Mohawk outflow:he has proved that the land has been tilted since thebeaches were formed, and that it is probably even nowrising. Gilbert has also stated that Ontario was formerlylower than now, and that the volume of Niagara haschanged as a result of the variation in outlet of theGreat Lakes (Figs. 129 and 130). He has pointed out that. FIG. 128. Gilberts map of glacial lake Iroquois. the Ontario shore line disappears on the northern flank ofthe Adirondacks, as if there had been at that place somedam, like an ice dam, which held up the lake waters ( and 129). He has also proved the existence of formerchannels in New York, caused when the waters wereescaping toward the Mohawk !See Science, VI, 1885, 222; Proc. Amer. Assoc. Adv. Sci. XXXV, 1886, 222-3;Science, VIII, 1886, 205; Forum, V, 1888, 417-428; Sixth Kept. Niagara Comm., 1890,61-84; Smithsonian Rept. 1890, 231-257; Internat. Congress Geologists, 5th Session,(1891), Washington, 1893, 455-458; Bull. Geol. Soc. Amer., Ill, 1892, 492-493; same,493-4; Amer. Journ. Sci. CL, 1895, 18; Bull. Geol. Soc. Amer., VI, 1895, 466; , XVIII, 1896, 231; Physiography of the United States, 1896, 203-236; Bull. Amer., VIII, 1897, 285-286; Nat. Geog. Mag., VIII, 1897, 233-247; EighteenthAnnual Report U. S. Geol. Survey, 1898, 595-647. 2 Bull. Geo
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