that the extent is very considerable. The present entrance, as may
be seen from the view of the interior, was made from above, at the
north side, directly opposite the original entrance.... Dr. Wibel
says: 'At the south side of the chamber is the doorway for ingress
and egress, with the passage itself leading from it. This passage,
which was 6 _mètres_ [19 feet 8 inches] in length, was lined with
upright blocks of granite and gneiss, with a roofing and floor made
of flagstones of the same kinds of stone. It was opened up all the
way to the mouth of the passage. This [the outer orifice] lay close
to the extremity of the earth and near the floor of the mound, was
closed with earth only, not with a stone, and measured about 1
_mètre_ [3 feet 3.4 inches] in height, and 1⅓ _mètre_ in breadth.
On account of these dimensions ... one can only creep through
with difficulty, and for that reason the plan does not show with
accuracy the position of the wall-slabs, and their number is merely
conjectured to be nine.'

"Immediately after this excavation of 17-19 September, 1868, C.P.
Hansen writes as follows:--

"'There are in the island of Sylt hillocks of ancient origin, for
the most part pagan burying-places, but some of which may have
served as the dwelling-places of a primitive people. One such
hillock has just been opened at Wenningstedt. The interior was
found to be a chamber, 17 feet long, 10 feet in breadth, and from 5
to 6 feet in height, with a covered passage about 22 feet long,
trending southward. The walls of this underground room were
composed of twelve large granite blocks, regularly arranged; the
roof consisted of three still larger slabs of the same kind of
rock; the stones which formed the passage were smaller. At one