390 
however, I have since seen an instance recorded of the 
occurrence of two hundred primitive graves on the Isle of 
Portland, discovered while removing materials for the forma- 
tion of the Portland breakwater, at a spot three hundred 
feet above the sea. The graves appeared to be of Pomano- 
British times. Near to many of them, deep holes had 
been made and filled up with pieces of stone mixed 
with bones of animals and birds, conjectured to have 
been the remains of sacrifice, or the relics of the 
funeral feast.* The similarity of some of these interments 
with that I have already described, affords strong evidence 
that one and the same object was sought to be obtained in 
each instance by the persons whose office it was to perform 
the last ceremonies for the dead. 
Upon examining, with some degree of minuteness, the 
numerous flint implements found by me in tumuli or in the 
gravel during twenty years explorations, I have invariably 
observed that those from the interior of Tumuli are of a 
much more modern form and elaborate workmanship than 
those discovered deeper in the soil overlying the chalk, 
which are of a rude and primitive character, and so closely 
resembling the celebrated flint implements from Amiens 
and Abbeville, as to be undistinguishable from them by an 
ordinary observer. This will be evident from an inspection 
of a series of sixteen specimens herewith sent, consisting of 
examples from the Yalley of the Somme and the neigh- 
bourhood of Bridlington. The latter of which I may 
remark, as a general rule, occur at from four to six feet in 
depth from the surface, unless they are in the drift deposits, 
when they exceed the above depth, the rudest in 
manufacture being the lowest, and those of more careful 
make nearest the surface. 
* Journal of the Archaeological Institute, vol. X., p. 61. 
