274 CORRELATION OF THE PREHISTORIC "FLOOR."
for correction is in reference to the barbed arrow-points. In
illustration of the former paper, a barbed-arrow point was
figured (Essex Naturalist,vo1. xvi., 1908. Pl. iv. fig. 2), of which
it was remarked that : "It is a little uncertain to which of the
two series this should be referred." This specimen was found
associated with the Earlier Series, but, as it is generally held in
prehistoric archaeology that the barbed flint arrow-point is
late, and probably of the Bronze Age, I thought that its presence
might be accidental. Since then, I have found several barbed
arrow-points which unquestionably belong to the Earlier Series
In fact, they seem more abundant in the Earlier Series than they
are in the Later Series. I find that the experiences of other
collectors in the district are the same as my own, Mr. F. N.
Haward, in particular, having arrived independently at similar
conclusions.
V.—THE CORRELATION OF THE PREHISTORIC
"FLOOR" AT HULLBRIDGE.
I think that it is most probable that the implements from
the prehistoric floor at Hullbridge belong to the Later Series,
or are at least approximately contemporary with them. More
detailed work will have to be done before one can speak with
assurance. The buried surface at Hullbridge is, however,
precisely similar to that of Eastern Essex, it is also similarly
situated in the marsh deposits, and has every appearance of
belonging to the same geological event. Some years since, a
brickyard was opened in the marshes, not far from the Hullbridge
site, and Mr. Rand informs me that at a considerable depth
below the level of the prehistoric "floor" a number of large
bones were found. I do not know what has become of these
remains, but, from the description given by Mr. Rand, there
seems little doubt that they belonged to the large Pleistocene
mammalia. Thus, so far as one can judge, the whole
succession appears to be similar in the two areas.
The technique of the flint industry from the Hullbridge
"floor" is also in many respects strikingly similar to that of
the Later Series of Eastern Essex, the chief difference noticed
being in respect of the cores. At Hullbridge the cores are
relatively rather more abundant than in East Essex. They also
show a greater tendency to the production of the neat, prismatic,