d flint implements of human workmanship? From our illustrations,
we see that they are of an oval shape, tending to a cutting edge all
around, and generally more or less pointed at one end. The testimony of
all competent persons who have examined them is, that however rude they
may be, they were undoubtedly fashioned by man. Dr. C. C. Abbott has
made some remarks on implements found in another locality, equally
applicable to the ones in question. He says: "We find, on comparing a
specimen of these chipped stones with an accidentally fractured pebble,
that the chipped surfaces of the former all tend toward the production
of a cutting edge, and there is no portion of the stone detached which
does not add to the availability of the supposed implement as such;
while in the case of a pebble that has been accidentally broken, there
is necessarily all absence of design in the fracturing."<33>

Like the watch found on the moor, they show such manifest evidence of
design, that we can not doubt that they were produced by the hand of
man. But it is not enough to know that they are artificial, we must also
know that they are of the same age as the beds in which they are found.

Section of Gravel Pit.-----------

This cut represents a section of a gravel pit at St. Acheul, on the
Somme. The implements are nearly always found in the lowest strata,
which is a bed of gravel from ten to fourteen feet thick. Overlying this
are beds of marl, loam, and surface soil, comprising in all a depth
of fourteen feet. It has been suggested that the implements are
comparatively recent, and have sunk down from above by their own weight,
or perhaps have been buried in artificial excavations. The beds are
however too compact to admit of any supposition that they may have been
sunk there; and if buried in any excavation, evident traces of such
excavation would have remained. We can account for their presence there
in no other way than, that when the river rolled along at that high
elevation, and deposited great beds of sand, these implements were
someway lost in its waters, and became buried in the gravel deposits.

Finally, we have to consider the age of the deposits. This is a question
that can be answered only by geologists, and we may be sure that more
than ordinary attention has been bestowed upon them. The remains of
many animals characteristic of the Glacial Age were found in the beds
at Abbeville. These include those of the elephants, rhino