AMERICAN JOURNAL OF SCIENCE 
[THIRD SERIES.] 
+O 
Art. I.—On the Correlation of New York Moraines with 
| ftaised Beaches of Lake Erie ; by FRANK LEVERETT. 
ABout three years since the writer discussed the relation of 
certain moraines of northern Ohio to the raised beaches of the 
western portion of the Erie basin.* The fact that the several 
raised beaches terminate in a successive series from higher to 
lower in passing eastward from northern Ohio to southwestern 
New York, had previously been determined by Mr. G. K. Gil- 
bert, and had suggested to him the hypothesis of ice occupancy 
eastward from the termini of the beaches. In that paper it 
was shown that a study of the moraines supports the hypoth- 
esis. The position of the moraines on the south border of the 
Lake Erie basin and their relation to beach lines which termi- 
nate in northern Ohio is such as to indicate that the eastern 
portion of the Lake Erie basin was still occupied by the ice 
sheet while the western portion was occupied by the lake which 
formed these beaches. At the time that paper was prepared 
the glacial features of western New York (where Mr. Gilbert 
had discovered that two lower beaches terminate) had not 
received attention, and it was not until the autumn of 1893 
that opportunity was afforded to examine these features. The 
examination of these features was not premeditated, otherwise 
it would have been more thorough and would have been pre- 
ceded by a fuller understanding of Mr. Gilbert’s results. It 
was taken up in connection with a study of the moraines bor- 
dering the re-entrant angle in the glacial boundary in south- 
western New York. When that study was entered upon it 
was planned to examine only the southern border of the 
* This Journal, April, 1892, pp. 281-301. 
Am. Jour. Scl.—THIRD SERIES, Vou. L, No. 295.—Juty, 1895. 
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