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MINDELEFF] CHIMNEY-LIKE STRUCTURES 183 
roof of the southern end of the tunnel, where it opens into the shaft, is 
considerably lower than at the other end. The floor of the tunnel and 
the sides were smoothly plastered, but the plastering does not appear 
to have been subjected to the action of fire. 
The interior of the room, like the circular kivas already described, 
appears to have been plastered with a number of successive coats, all 
except the last being heavily stained by smoke. If the structure were a 
chimney, it was a dismal failure. The tunnel was made at the time the 
wall was erected, and passes under the bowlder over which the wall was 
built. A little east of the opening, inside the room, the bowlder shows 
through the wall, projecting slightly beyond its face. 
Outside of the room the corner of the bowlder was chipped off, as 
shown on the plan, to permit the rounding of the shaft, the east, west, 
and south sides of which were built up with small pieces of stone, a 
ROOM 

TUNNEL | 
\ 
Fic. 79—Section of chimney-like structure in ruin No. 15. 
kind of lining of masonry. There was also an outside structure of 
masonry, but how high above the ground it extended can not now be 
determined. A small fragmentof this masonry is still left on the upper 
surface of the bowlder and is shown in the section. 
Figure 80 is a plan‘of another example, which is attached to the 
circular kiva in ruin No.16. This ruin is described on page 129. The 
kiva had an interior bench and the floor is 2 feet above its top. On the 
south side nearest the cliff edge the bench is interrupted to give place 
to a structure much like that described above. In this case, however, 
there was no convenient bowlder, and the roof of the tunnel has broken 
down so that the method of support can not be accurately determined. 
Probably it consisted of slabs of rock, as the span is small, and a num- 
ber of large tlat stones were removed from the tunnel in excavating. 
