202 
Frank Carney | 
1883— T. C. CHAMBERLIN. 
The following statement is probably the first characterization i 
of ice-work in the Finger lake region by a man of wide study and 
field experience in glacial geology: ! 
‘‘That these troughs were the preglacial channels of streams i 
does not seem to me to admit of reasonable doubt; but that there ' 
was a selection and moulding by glacial corrasion seems equally | 
clear; those channels that lay in the directions that would have ; 
been pursued had the ice moved on a uniform floor, being ground I 
out wider, deeper, straighter, and smoother, while those in trans- 
verse directions were measurably filled and obscured. 
I 
1892 — D. F. LINCOLN. [| 
After describing the surface features especially about Seneca | 
and Cayuga lakes, he concludes: “The inference from these ; 
considerations is that the preglacial river which has been devel- i 
oped into Seneca lake must have occupied a level many hundreds | 
of feet above the present bed of the lake. i 
Following a descripiton of some valleys tributary to the Seneca 
valley, he says : “ If these valleys, or any of them, had a preglacial , 
existence and a rational connection with the lake valley, it would | 
seem necessary to suppose that the bed of the latter then stood 
at an elevation 800 ( .^) feet higher than at present. | 
1893 — A. P. BRIGHAM. i 
Following a discussion of the Finger lakes, Brigham thus sum- 
marizes their origin: “To review briefly we suppose the basins | 
to be a composite resultant of valley erosion, glacial scoop and i 
drift barriers, with perhaps a slight element of orography. 
1894 — R. S. TARR. ! 
In a paper presented to the Geological Society of America in i 
1893, Tarr discusses the origin of the Finger lakes, particularly I 
U. S. Geological Survey, Third Annual Report, p. 358. j 
American Journal of Science, vol. xliv, p. 299. ' 
Ibid., p. 300. ji 
Bulletin of the American Geographical Society, Yo\.xxw,p. 16. 
