The ends
of the timbers rest upon the side walls, and as they are placed in
position a small feather, to which a bit of cotton string is tied
(nakwakwoci) is also placed under each. Stout poles, from which the bark
has been stripped, are laid at right angles upon the timbers, with
slight spaces between them. Near the center of the kiva two short
timbers are laid across the two main beams about 5 feet apart; this is
done to preserve a space of 5 by 7 feet for the hatchway, which is made
with walls of stone laid in mud plaster, resting upon the two central
beams and upon the two side pieces. This wall or combing is carried up
so as to be at least 18 inches above the level of the finished roof.
Across the poles, covering the rest of the roof, willows and straight
twigs of any kind are laid close together, and over these is placed a
layer of dry grass arranged in regular rows. Mud is then carefully
spread over the grass to a depth of about 3 inches, and after it has
nearly dried it is again gone over so as to fill up all the cracks.
A layer of dry earth is then spread over all and firmly trodden down,
to render the roof water-tight and bring its surface level with the
surrounding ground, following the same method and order of construction
that prevails in dwelling-house buildings.
[Illustration: Plate LVI. Standing wall at Pinawa.]
Short timbers are placed across the top of the hatchway wall, one end
of which is raised higher than the other, so as to form a slope, and
upon these timbers stone slabs are closely laid for a cover.
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