Then by lifting the box up and tapping the box from
above, the block will drop out. In this way blocks of uniform size
are formed, which makes the building simpler and easier.
While one boy makes the blocks another can shave them off at the
edges and two others can build the house, one inside of the circle
and the other outside. The Eskimos build their snow houses in this
way, and the man inside stays there until he is completely walled
in. Then the door and a window are cut through the wall.
[Illustration: Laying the Snow Bricks]
[Illustration: Three-Room Snow House]
Each layer of snow blocks must have a slight slant at the top
toward the center so that the walls will constantly curve inward.
This slant at the top is obtained better by slicing off the lower
surfaces of each block before putting it in its course. The top
will then have a uniform inward slant.
The first course of the snow house should be thicker than the
others, and the thickness of the walls gradually decreases toward
the top. A wall, however, made of 6-in. blocks throughout will
hold up a snow house perfectly, if its top is no more than 6 or 7
ft.
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