Glncial Action on the Coast of Greenland. — Barton. 379 
route via Sharon instead of the Mahoning, and that the lower 
portion of the latter stream is of recent origin. The Slippery 
Rock was turned southward at Kennedy's upper mill by the 
advancing ice-sheet which filled its pre-glacial valley, and on 
retreating left a dam of drift 100 feet high across its former 
course, while the wild gorge and raging stream between Ken- 
nedy's mill and the Connoquenessing, so dilferent from the 
wide valley and sluggish current above the mill, though the 
outcropping rocks are the same, full}'' attest the recent origin 
of the twenty-mile cut between the mill and the C'onno(|uen- 
essing, near Wirtemburg. 
EVIDENCE OF THE FORMER EXTENSION OF 
GLACIAL ACTION ON THE WEST COAST 
OF GREENLAND AND IN LABRADOR 
AND BAFFIN LAND. 
By George H. Barton, Bostou, Mass. 
The Sixth Peary Expedition to northern Greenland, in the 
summer of 1896, carried two outside and independent jjarties, 
one from Cornell University under the direction of Prof. R. 
S. Tarr, and one from the Massachusetts Institute of Tech- 
nology under the direction of Prof. Alfred E. Burton. Of the 
latter party the writer was a member. 
Sailing from Sydney, Cape Breton, July 16, on the steam 
whaler " Hope," a fine vessel for work in the ice, the first ice- 
bergs were encountered at the northern entrance to the Strait 
of Belle Isle on the 18th, and on tl)e 19th pan-ice was encoun- 
tered, which was found in more or less abundance as far north 
as Cumberland sound, the entrance to which was so completely 
filled with it that no passage could be found. Stops were 
made at Turnavik, on the coast of Labrador, at various points 
in Hudson strait along its north shore, and on Big Savage 
island; and then, after a vain attempt to enter Cumberland 
sound, a direct run was made across Davis strait. The Green- 
land coast was first sighted some distance south of Disko bay, 
about lat. 67"^. A short stop was made at Godhaven, at Sar- 
kak, which is at the head of Disko bay, then passing through 
the Waigat, with a brief visit to the mainland when about half 
way through, and around the end of Nugsuak peninsula, the 
Institute party were landed, on the morning of August 5, at 
