tion, gives the following account:

"We went down some eighteen feet or so, near the ground water,
and can report as follows, viz., the top layer consisted of about
two and a half feet of extraordinary hard and compacted soil.
Even in this we turned up several glazed potsherds.... At about
six and a half feet we found pottery. But the actual adit
averaged about eighteen feet below the surface. For we came upon
charcoal and ash heaps at this depth. This thoroughly verified
the native statements as to the finding of either pearl jars or
ashes so far down.[34] The old excavations made by the
inhabitants reached from twelve to twenty-four feet or
thereabouts."

Frobenius, in describing the objects discovered by this expedition,
says: "The substance of the pots is a sort of cement or stoneware.
They are from fourteen to twenty four inches high and from three and
three quarters to sixteen inches in diameter; they are generally
uniform. The aperture is at the under and upper ends of the walls from
about three quarters to one and a quarter inches thick. The upper of
these portions is covered with an irregular glaze, varying from one
thirty sixth to one eighteenth of an inch thick inside. They were
similarly glazed outside as the edges proved, but this has perished. A
convexly carved plate or cupola in which there are three or four holes
for finger holds seem to have been lids. Inside the pots are glass
beads, rings, irregular bits of glass tubing, and always at the bottom
a mass of fused bits of glass from one eighth to one quarter of an
inch in depth. The colors of the beads and the glaze on the jars vary
from light green, greenish white, dark red, brown and blue."
Frobenius, commenting upon these finds, concludes that "the great mass
of potsherds, lumps of glass, heaps of slag, etc., which we found
proves at all events that the glass industry flourished in this
locality in ages past. It is plain that the glass beads found to have
been so common in Africa were not imported, but were actually
manufactured in great quantities at home."[35]

In addition to these objects of stoneware and glass, there were a
large variety of terra cotta objects which range from the "simplest
little pots and saucers to the most artistic shapes and portraits." To
appreciate the real significance of these objects in view of the
inability to see the originals themselves, one should make a specia