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too, the avenues are similarly orientated. If, therefore, the 
builders of the tombs had a religious reason for this arrange- 
ment, the same motive must have been dominant in the 
minds of the constructors of the avenues ; and the inference 
is not without force that the same people erected both. 
This arrangement may be a token of their religious 
reverence for the deified orbs of heaven, the sun and the 
moon. 
There are few circles not associated with avenues in the 
Morbihan. One exists in the Ile-aux-Moines, and a second 
on Ile-Lanic. The third, at St. Pierre, Quiberon, is not far 
from a group of avenues. Not one is in a perfect condition. 
The first is of a crescent or horse-shoe form, and it has 
been questioned whether it was ever more than a segment of 
a circle. The distance between the two points of the 
crescent is 322 feet. 
The second is upon a very small island close to Gavr’ Inis, 
the island being only about 200 yards in diameter. On the 
south side the land slopes gently towards the sea, and on this 
slope lie the remains of a circle of 165 feet in diameter. 
Three only of the stones are standing, the others have fallen. 
The sea has encroached upon the island, and its stormy 
waves have carried away a portion of the circle, and continue 
to destroy both it and the island annually. When Sir Henry 
Dry den and I planned it in 1868, the tide happened to be 
low, and we had a good opportunity of observing some of 
the stones that had completed the circle lying on the beach 
and rocks, and resting not far from their original places. 
This is the only example with which I am acquainted in 
Brittany where the pre-historic people have left abundant 
traces of the unknown customs which they practised upon 
such spots, and I trust it will receive, as it deserves, a most 
careful examination with the spade from the proprietor. 
Not only is the area of the circle thickly strewn with 
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