a passageway into chamber _b_, which is
considerably enlarged, although the position of the lintel is clearly
indicated by notches in the wall. The beam which was formed there had
been torn from its place and undoubtedly long ago used for firewood by
nomadic visitors. The open passageway, measured externally, is about
15 feet above the foundation of the wall, through which it is broken,
and about 8 feet below the upper edge of the wall.

Room _b_ is an irregular, square chamber, two stories high,
communicating with _a_ and _c_ by passages which are enlarged by
breakage in the walls. A small hole in the front wall, about 6 feet
from the floor, opens externally to the air. The walls are, in
general, about 2 feet thick, and are composed of flat red stones laid
in clay of the same color. The cliff forms the rear wall of the
chamber. The clay at certain places in the walls, especially near the
insertions of the beams and about the window openings, appears to have
been mixed with a black pitch, which serves to harden the mixture.

Room _c_ is the first of a series of chambers, with external
passageways, but its walls are very much broken down, and the openings
thereby enlarged. The front wall is almost straight and in one place
stands 30 feet, the maximum height of the standing wall of the ruins.
In one corner a considerable quantity of ashes and many evidences of
fire, some of which may be ascribed to Apache occupants, was detected.
A wooden beam, marking the line of the floor of a second story, was
seen projecting from the front wall, and there are other evidences of
a floor at this level. Large beams apparently extended from the front
wall to the rear of the chamber, where they rested on a ledge in the
cliff, and over these smaller sticks were laid side by side and at
right angles to the beams. These in turn supported either flat stones
or a layer of mud or clay. The method of construction of one of these
roofs is typical of a Tusayan kiva, where ancient architectural forms
are adhered to and best preserved.

The entrance to room _d_ is very much enlarged by the disintegration
of the wall, and apparently there was at this point a difference in
level of the front wall, for there is evidence of rooms in advance of
those connected with the chambers described, as shown by a line of
masonry, still standing, parallel to the front face of inclosures _c_
and _d_.

Room _e_ communicates by a doorway with the chamber marked _f_