29 
most remote of the Shetland isles,) in the 
form of a Roman camp, having in the 
middle a rectangular area surrounded by 
a wall, and that by an earthen rampart 
of the same figure. Vid. Plate, Pen . 
Arct. Zool. vol. 1, p. 33. 
Druidical circles of stones are also 
common here. 
There have also been found swords 
made of the bones of large fish, flint 
heads of arrows, flint hatchets, &c. 
In the Island of Unst are two curious 
sepulchral circles. The largest consists 
of three concentric circles, its greatest 
being fifty feet in diameter. The out¬ 
most circle is formed of small stones, the 
other two of earth. Through all these 
is a single narrow entrance to a tumulus 
which stands in the centre. 
The other circle is considerably less, 
and has only two rings made of earth. 
An extensive burying-place has also 
been discovered in the Isle of Westra, 
