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thin sprinkling of white pebbles in the surrounding fields shows that. 
the deposit had once a more extensive distribution. This also makes 
it somewhat difficult to lay down a definite margin for the outlier 
on the map. 
Many small pits have been opened in the pebble beds, principally 
with the object of obtaining road metal. Most of these pits are 
abandoned and overgrown, but there are three or four, widely 
scattered, still in use, and these furnish very good sections of the 
different parts of the mass. The largest pit is on the south side 
about the middle of the outlier, and this is probably the best exposure 
at present available for examination. 
In this pit the working face is about 12 feet high. No boulder- 
clay is seen above the gravels. The deposit is in every respect 
very closely similar to that of Delgaty. The pebbles are perfectly 
rounded white quartzite and quartz-schist, with a small proportion 
of rather decomposed flints. Stratification is barely visible, though 
not completely absent, and there are streaks less rich in pebbles, 
12 feet or more in length and somewhat lenticular in outline. The 
bedding is horizontal and undisturbed. The matrix is white or pale 
yellow, sometimes very rich in fine scales of white mica, but never 
so quartzose that when kneaded with the fingers it is not distinctly 
plastic and coherent. The peculiar characters of the quartzite 
pebbles of Delgaty which give that deposit such a marked 
individuality are all seen at Windyhills, and there is no room for 
doubt that the pebble beds of these two localities, which are 8 miles 
apart, belong to the same series. Some of the pebbles in the Windy- 
hills pits are composed of black and blue quartz, others are of a 
decomposed whitish chert. 
The other smaller pits at Windyhil!ls exhibit the same features, 
and do not merit a special description, They are all in pebbly 
beds and have been dug for pebbles; if there are sandy or clayey 
facies of the deposit they are not now being worked. An exception 
occurs, however, in a small pit near the west end of the outlier, on 
its south side ; in this a brown clay was dug, full of slate fragments, 
and with comparatively few quartzite pebbles. It seems that we 
have here a part of the floor of slate on which the gravels rest, but 
the relations were not absolutely clear. A somewhat similar clay 
is visible in a small pit in the wood near by. Here large angular 
fragments of the underlying metamorphic rock are abundant in 
a brown clay. A small excavation with a pick showed that these 
rock fragments increase in number and size below, and it is probable 
that the underlying solid rock would be met with in a short distance. 
This bed, at any rate, contains no other rocks, and the fragments are 
angular. It does not seem likely to be a boulder-clay, though that 
possibility was not absolutely excluded. 
With this possible exception, the base of the gravel is not visible. 
On the other hand, there was no good exposure showing overlying 
boulder-clay. Scattered erratics of local rocks may be found on the 
