90 On the Stone Avenues of Carnac. 
One exists in the Ile-aux-Moines, and a second on Isle-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 a crescent or horse shoe form, and it has been questi- 
oned 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 are 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 Dryden and I planned it in 1868, the tide hap- 
pened 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 Britanny 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 
fragments of clay vessels, coarse and fine, ornamented and plain, and 
with animal bones and stone implements of various kinds, such as 
chisels, scrapers, knives, and hammers, but the whole of the small 
island itself appears to be sown with these objects. While we were 
engaged in planning, I picked up several good specimens of them 
that were lying on the surface, or had been brought to light by the 
action of the waves. 
The third is 195 feet in diameter, and has been deformed by the 
cultivators of the land, many of its stones having been displaced. 
I was informed, in 1869, that the proprietor or occupier mtended 
removing what remains of this circle, because the stones interfere 
with his agricultural operations. 
I know of one example only of a square of menhirs in Britanny,« 
and this is in the Morbihan, on the borders of the parish of Erdeven, 
