Koons—Kettle-Holes of the Wood’s Holl Region. 485 
thirty degrees; but most likely this is due to local displace- 
ment, perhaps a sliding of a hank rather than a general 
disturbance of the surface of the region. These stratified 
deposits are found in a great many localities, both upon the 
mainland and the islands, and often upon the highest points 
of the region; the most extensive of all (described in my 
former article) are upon the very summit of Naushon over two 
hundred feet above the sea. At times they are overlaid by 
coarse unmodified drift, at others occupy the surface; and 
upon a study of the localities and the character of the deposits 
it seems that they were made by the flowing waters of the 
Streams as they ran from the face of the glacier and found their 
way over the terminal moraine into the sea beyond. 
Doubtless the borders of the kettle-holes were much higher 
at the close of the Glacial period, and the depressions them- 
selves much deeper; and perhaps we can safely add one-third or 
one-half to the measurements; and, as mentioned elsewhere, 
the angle of the slope has been much reduced; however, no 
excavation or railroad cut has yet afforded an opportunity for 
the examination of the formations at the bottom of these 
depressions. 
It will be noticed that just east of Quisset Harbor the gen- 
eral direction of the long axes changes, and instead of having 
the same trend with those on the Elizabeth Islands and the 
point of the peninsulafnear the village of Wood’s Holl, it 
swings around toward the north to about N. 25° or 30° E.; 
and just here Mr. Warren Upham made an angle in the ter- 
minal moraine. 
those at Gay Head at the west end of Martha’s Vineyard, 
extend along the south shore in a cliff seventy-five feet high, 
with a layer about five feet thick of very coarse unstratified 
material upon the top. ‘These stratified beds have a strike of 
N. 50° W., dip 25° N.E. There are also stratified deposits 
cropping out along the east side of the island, and the 
encroachments of the sea upon that part of the shore show the 
# This Journal, IIT, vol. xvili, p. 203. 
