The doorway mentioned is the only opening into the ground-floor room in the tower. Connection with the rooms on the west was through a large doorway in the western wall of the second story, and in the story above there was a similar opening. These are shown in plate XLVIII, which is a general view of the central portion of the eastern cove. The lintels of the openings in the central part are formed of round sticks, about 3 inches in diameter, matched, and bound together with withes. These withes may be seen in places where the mud plaster has fallen away. The stick lintels occur only in the central portion; the windows and doorways of the other portions of the ruin, some fine examples of which remain, are always finished with stone lintels and sometimes with stone jambs. A little east of the center of the front wall there is a large rock, or rather a pile of large rocks, near the outer edge of the ledge. This is shown in the illustration. Instead of removing this obstruction the wall was built under and over it. Near the western end of the front wall there is a large doorway or opening. Access to the western cove was along the narrow edge of the ledge under the front wall, thence through this doorway. The doorway gave entrance to a very narrow space, less than 4 feet square, surrounded by a heavy wall with a doorway through the left or western wall into the last apartment of the series. Through the western wall of this apartment a doorway opened on the end of the ledge and the western cove. This principal entrance is shown in plate XLVIII. Its size is exceptional, it being about 6 feet high. A little below the top there is a single stick across it, and a similar contrivance was found in place in the openings in the tower, but it does not occur in the opening in the cross wall. The same feature is found in the modern pueblos, where the stick forms the support of a blanket draped to close the opening. [Illustration: Plate XLIX Eastern Cove of Mummy Cave] A little east of the doorway in the front wall there is a small opening near the ground, through which can be seen what appears to be a roof. It is but 2 feet above the ground, however, and very roughly constructed. It consists of a layer of cedar logs; above this a layer of small sticks, and above this again slabs of stone and mud. It occurs under a narrow room or passage, shown on the plan, and seems to have been the floor of that room rather than a roof of a space below.