264 The American Geologist. October, 1902. 
REVIEW OF RECENT GEOLOGICAL 
LITERATURE. 
Pleistocene Geology of ll'ester>i Nciv York. .Report of Progress for 
igoo. By H. L. Faikchili). Reprinted from the 20th Report of the 
New York State Geologist, 1900. Pages ri05-ri3g, with plates 9- 
41. Albany, 1902. 
During several preceding years the glacial lake history of western 
New York had been studied by Prof. Fairchild, with extensive field ex- 
plorations in the district of the Finger Lakes and in the Genesee valley, 
as previously published in numerous papers. The pre.sent report gives 
details of the continuation of these studies in three additional districts, 
first, along the Iroquois shore line, east of lake Ontario, between Rich- 
land and Watertown ; second, between Syracuse and Oneida, with special 
reference to the higher and earlier channels cut by the overflow of the 
glacial waters ; and, third, in Cattaraugus and Chautauqua counties, west 
of the former explorations. 
With the grand work of detailed drift surveys by Leverett upon the 
region of lakes Erie, Huron, and Michigan, the less complete but very 
valuable work of Taylor and Lawson about lake Superior, and the re- 
port by the present reviewer on the glacial lake Agassiz, a most im- 
portant part of the record of the recession of the ice-sheet from the 
northern border of the United States and from southern Canada is 
being well traced and correlated. Nowhere else upon all this vast area 
of great lakes dammed by the barrier of the departing continental gla- 
cier are the evidences of these lakes, small and large, with varying di- 
mensions, changes of outlets, successive shore lines at different hights, 
contemporary or closely subseqitent uplifts of the land, giving gentle 
slopes to the once level beaches, and all the relations of the lakes to the 
waning ice-sheet, so fulh'' and complexly developed as in New York. 
It is delightful to see in this report a large map of lake Iroquois, on 
the scale of 12 miles to an inch, and a map of its eastern shore lines 
for thirty miles on the scale of a mile to an inch- The warping, or dif- 
ferential uplift, of the east end of the Iroquois or lake Ontario basin 
is found to have occurred mostly after this glacial lake fell away from 
its Rome outlet, when, by extension around the north side of the Adi- 
rondacks, it became united with the glacial lake Hudson-Champlain and 
later became a part of the more extended but lower lake St. Lawrenco. 
The tilting between Rome and Watertown, giving an ascent of fully 
five feet per mile along that distance of more than 50 miles, took place 
evidently at a much faster rate than the slight deformation of the re- 
gion of the Laurentian lakes which has been ascertained by Gilbert to 
be still in progress, its present rate being .42 of a foot in 100 miles in 
100 years. 
The many plate views from photographs, showing the old shore lines 
and deltas, abandoned channels of outflow, and small lakes now exist- 
ing in basins produced by stream plunge in the course of the ancient 
outlets, are very impressive testimony of an order of events in the Late 
