172 The American Geologist. September, 1893 
work, respectively in North Carolina and New Jersey, as fully 
harmonious with Mr. Darton's sequence of oscillations attended 
by alternate deposition and erosion. 
Glaciation of the White Mountains, JSf. II. By Prof . C. H. 
Hitchcock, Hanover. N. H. In the absence of the author this 
paper was read by title. 
The Gravels of Glacier Bay, Alaska. By Prof . H. F. Reid, 
Cleveland, O. This was an illustrated lecture given in the 
assembly chamber of the state capitol. Very beautiful and 
instructive lantern views of the Muir and other glaciers of the 
district were exhibited, with description of the valley drift, 
chiefly gravel, under and in which a forest, with many trees 
yet standing, was buried and is now being brought again to 
light by the retreat of the glaciers and the resulting stream 
erosion of the gravels. 
American Association, Section E. 
At the first session of Section E for the reading of papers, 
the local geology of Madison and its vicinity was briefly de- 
scribed by Prof s. Salisbury and Van Hise, the former speaking 
of the drift deposits and the latter of the underlying Cam- 
brian formations. Some of the drumlins of the district, and 
especially those in the city of Madison, were stated by Prof. 
Salisbury to consist in their central and larger part of strati- 
fied sand and gravel, overlain by till, which forms the surface 
of these oval hills. The plentiful boulders of this till and its 
smaller rock fragments and gravel are thought to be englacial 
and finally superglacial drift deposited upon hill masses of 
sand and gravel formed by subglacial streams. The unusually 
large proportion of very fine silt or loam in the till here may 
be due, as Prof. Salisbury thinks, to wind transportation from 
the neighboring driftless area on the west. A remarkable 
esker or osar between lakes Monona and Wingra, in the 
southwestern suburbs of Madison, seems to have been accum- 
ulated by a glacial stream flowing transverse to the general 
ice movement, which here was from northeast to southwest. 
An area of very abundant drumlins extends eastward from 
Madison, where their mapping by Mr. I. M. Buell shows an 
average of about seventy-five for each township six miles 
square. 
