One very remarkable circumstance in the Cliff Palace is that all the pieces of timber, all the large rafters, have disappeared. The holes where they passed into the walls may still be seen, but throughout the great block of ruins two or three large beams are all that remain. This is the reason why none of the rooms is completely closed. At Sprucetree House there were a number of rooms where the placing of the door stone in position was enough to throw the room into perfect darkness, no little aid to the execution of photographic work. It is difficult to explain the above state of things. I observed the same want of timber in parts of other ruins (at Long House for example). In several of the cliff-dwellings it appears as if the beams had purposely been removed from the walls to be applied to some other use. Seldom, however, have all the rafters disappeared, as in the Cliff Palace. There are no traces of the ravages of fire. Perhaps the inhabitants were forced, during the course of a siege, to use the timber as fuel; but in that case it is difficult to understand how a proportionate supply of provisions and water was obtained. This is one of the numerous circumstances which are probably connected with the extinction or migration of the former inhabitants, but from which our still scanty information of the cliff-dwellers cannot lift the veil of obscurity. [Illustration: PLATE 6 PHOTOGRAPHED BY R. G. FULLER CENTRAL PART, AFTER REPAIRING] In addition to his description Nordenskiöld gives a ground plan of Cliff Palace[12] (pl. XI); a magnificent double page view of the ruin from the west (pl. XIII); a fine picture of Speaker-chief's House (pl. XII); a view of the Round Tower (fig. 34); a figure and a plan of an estufa of singular construction (T); a view of the interior of Kiva C and of a small room at the back of the main rows of rooms. No specimens of pottery, stone implements, and kindred antiquities from Cliff Palace are figured by Nordenskiöld. In various places throughout his work this author refers to Cliff Palace in a comparative way, and in his descriptions of other ruins the student will find more or less pertaining to it. [Footnote 12: The illustrations referred to in this paragraph are in Nordenskiöld's work.] In his book The Cliff Dwellers and Pueblos,[13] Rev. Stephen D. Peet devotes one chapter (VII) to Cliff Palace and its surroundings, compiling and quoting from Chapin, Birdsall, and Nordenskiöld. No new data appear in this work, and the illustrations are copied from these authors. [Footnote 13: As stated in a note (Peet, p. 133) Chapter VII is a reprint of Doctor Birdsall's article in the _Journal of the American Geographical Society_, op. cit.] Dr. Edgar L. Hewett[14] briefly refers to Cliff Palace as follows (p. 54):