ably at one time a floor; and the beds
beneath seem to be the remnants of more ancient buildings. The vegetable
mould was here only 9 inches thick. In some other sectionsnot copiedwe
likewise have evidence of buildings having been erected over the ruins of
older ones. In one case there was a layer of yellow clay of very unequal
thickness between two beds of debristhe lower one of which rested on a
floor with tesserae. The ancient broken walls appear to have been
sometimes roughly cut down to a uniform levelso as to serve as the
foundations for a temporary building; and Mr. Joyce suspects that some of
these buildings were wattled shedsplastered with claywhich would
account for the above-mentioned layer of clay.
Turning now to the points which more immediately concern us. Worm-
castings were observed on the floors of several of the roomsin one of
which the tesselation was unusually perfect. The tesserae here consisted of
little cubes of hard sandstone of about 1 inchseveral of which were loose
or projected slightly above the general level. One or occasionally two open
worm-burrows were found beneath all the loose tesserae. Worms have also
penetrated the old walls of these ruins. A wallwhich had just been
exposed to v
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