578 Megalithic Monuments of Brittany. 
took place the great sea fight between Cæsar and the Venites. It 
has but a single covering stone bearing the form and worn appear- 
ance of a huge boulder. I do not know its exact size, but as I 
remember it it is twenty to twenty-five feet in length, nine or ten 
feet in breadth, and two or two and one-half feet thick. The 
chamber is rectangular, somewhat smaller than the dimensions of 
the covering stone above given, and is six or seven feet in depth. 
The bottom of the covering stone, plainly to be seen from the 
interior by looking upwards, is decorated with the representation of 
an immense polished stone hatchet or celt, with a long handle 
terminating in a knob. The instrument is represented in outline 
by a groove which has been cut, or rather pecked, into the granite 
surface. 
Fic. 3.—Dolmen of Grand Island. Another form. 
The dolmens, usually square but sometimes round, were ma 
the form of chambers, sometimes as small as four by six feet, 
de in 
four 
feet long, 
single 
They 
tood on 
The 
feet high ; sometimes these were sixteen feet wide, thirty 
and eight feet high. Most of the dolmens consist of a 
chamber, but many have as many as six lateral chambers. 
are made of huge flat unhewn granite stones, which ares 
end or edge to form the sides and ends of the chambers. 
