PALEOLITHIC AND NEOLITHIC IMPLEMENTS. 73
perhaps a little later than some of the above. No. 50e is another
flake, broken and rolled, possibly Mousterian. No. 42c is a
somewhat doubtful outside chip, possibly natural.
Localities Unknown.
No. 21 is a fine implement ; large, broad-pointed, very
keen-edged, unabraded, with wedge-shaped butt formed by
natural fractures. Its mineral condition suggests the Stoke
Newington "floor" of Worthington Smith, and if so it would
be of Mousterian date. Size 218 x 108 x 52 mm. The more
acute point, No. 59, and the broader specimen, No. 22c, might
also, to judge from their patina and technique, be from the same
locality. A fine implement is referred to by Worthington Smith
in his letter in Nature, but his description does not seem to
accord with No. 21, and we have not been able to identify it.
No. 116 is a good sub-triangular, ochreous, and almost
unabraded implement.
Twenty-four implements (of which the best are Nos. 14, 25,
101, and 123) are mostly pointed forms of Chellean or Early
Acheulean style. Five implements (Nos. 6, 23b, 40c, 45, 49b)
approach the ovate form. Nos. 86 and 28c are two discoidal
forms.
No. 71 is a heavy, crude, large triangular piece, rather unusual
but probably unfinished, as the flint was of bad flaking quality.
Size 146 x 142 x 57 mm.
No. 128. This is a deeply ochreous flake, evidently from a
Palaeolithic river gravel, but not in itself distinctively human.
Its claim to interest rests upon the Eolithic chipping of the
edges (there is a notch on one side of the narrow end, making
a beak-point) which is later than the patination.
No. 28g is another patinated flake (either Later Palaeolithic or
Neolithic) with extensive and good Eolithic pressure-chipping
of the edges, which is later than the patina. Prehistoric imple-
ments very frequently have Eolithic chipping of the edges
which is later than the patination of the flint ; whereas instances
of later re-flaking of older implements by man are very rare.
ACHEULEAN.
Localities Unknown.
There are several very attractive implements in the collection
with the lateral ogee twist of the edge, and it is unfortunate