16 BUREAU OF AMERICAN ETHNOLOGY BULL. 81 
Mra Bins 
Meal bins in the floors were oblong or square, and always well plas- 
tered. A typical one was found in room 6, location 6. The dimen- 
sions are 43 cm. in length, 28 cm. in width, and 165 mm. in depth. 
The corners are all well rounded. No remains of meal were found in 
any of the bins. The usual location of the meal bins in this ruin was 
in or near acorner. (Pl. 8.) 
Roors 
Both the roofs and floors presented no very different features from 
those found in most pre-Spanish ruins in the Southwest. In well- 
defined strata we found the remains of floor and roof material, but 
in such bad condition that we could not even bring a small section 
of it away. However, by careful work enough was uncovered to 
show the manner of construction, which is as follows: First, beams 
were placed in position on the top of the adobe wall; covering these 
laterally were rods, and again in an opposite direction were heavy 
masses of twigs and 
" brush; in a f 
rush; in a few cases 
; there were layers of 
cedar bast. Finally, 
DEPTH, 1.35 1. over all a heavy cov- 
ering of ‘adobe was 
placed directly on the 
twigs or bast. 
QEPTH,/.10M DEPTH, 1.25. A photograph of a 
section of flooring 
from Spring House, 
Mesa Verde, in south- 
DEPTH, western Colorado, is 
. used as an illustra- 
Fic. 3.—Diagram of the kiva. tion of the manner in 
which floors and roofs were generally built in the pre-Spanish ruins 
of the Southwest. This illustration is used because the floors and 
roofs at Po-shu were constructed in the same manner and no good 
photograph could be-obtained there. (PI. 6.) 
Kiva in Puaza No. 1 
Upon my first visit to the ruin I was struck by the fact that only 
one kiva was to be seen. I supposed that others would appear as 
the excavation proceeded, but was disappointed. We found a num- 
ber of rooms that were undoubtedly ceremonial in character, but there 
was only one round kiva. 
We attempted to excavate the kiva, but after two days spent in 
the most strenuous efforts we abandoned it. In two days we were 
