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B. F. Koons—Kettle-Holes near Wood’s Holl, Mass. 261 
(No. 18 on the map below) upon the steep border, seventy- 
three feet above the bottom. 
At another place, upon a similar deposit several feet thick, 
lies a bowlder weighing several tons. On the island of Nau- 
shon, opposite Tarpaulin Cove, upon the summit of a hill over 
feet above the sea-level and where the island is not more 
than two-thirds of a mile wide, there is a stratified deposit. 
which has been partly cut away by the winds and thus its char- 
acter made known. It has at top a bed of fine yellow sand 
ten inches thick; beneath this a layer of white or smoky white 
sand, then again a black layer, and beneath this a ferruginous 
layer two inches thick, all very similar to those of Gay Head 
at the west end of Martha’s Vineyard. And within a few rods 
of this stratified deposit the surface over a considerable area is - 
completely covered with bowlders, two of which, Nos. 7 and 8 
of table No. 2, are of unusual size. 
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OST ENE Fd ania ies 
Map of the vicinity of Wood's Holl and the neighboring Elizabeth Islands, showing: 
ositions and direction of the larger diameter of the Kettle-Holes. _ . 
of only 
In my study of thi ion I kept a record generally 
é ts yo is region ep gs ae 
mules, were carefully. 
holes could be bites ke 
6 
