The wedge holes in c, c, c, c measure 1/2 by
1/4 inch, and are arranged to be partly covered by the sides, so that the
wedges cannot touch their inner ends. (See Fig. 9.) This ensures the
shelves being tightly drawn up against the sides when the wedges are driven
home.
[Illustration: Fig. 8.--End elevation of bookstand.]
The wedges should be cut on a very slight taper of not more than half an
inch in the foot run, in order to keep their grip. Prepare a strip as thick
as the smaller dimension of the holes, 3/8 inch wide at one end, and 7/8
inch wide at the other. Assemble the parts and push the piece through a
hole until it gets a good hold, mark it across half an inch above the hole,
and cut it off. Then plane the strip down parallel to the edge that follows
the grain until the end will project half an inch beyond the lug next
fitted. Mark and cut off as before, and repeat the process until the eight
wedges are ready in the rough. Then bevel off the outside corners and
smooth them--as well as the rest of the woodwork--with fine glass
paper.
Shelves and sides should be wax-polished or given a coat or two of varnish.
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