This problem consists of a base, three spindles and seven disks of
different diameters. The spindles are fitted tight into holes in the
base and rounded at the top so the disks will slide over freely. The
seven disks are laid out on the wood with compass, and to prevent
splitting the holes are all bored before the sawing is done.
The parts may receive a finish of stain and two or three coats of
shellac. Polish with No. 1/2 sand-paper between each coat.
_Puzzle_--Place all disks on one spindle, decreasing in sizes upward.
The object is to transfer the disks to one of the other spindles and
to be in the same order. In doing this, never have more than one disk
at a time removed from the spindles, and never place a larger disk on
top of a smaller one.
[Illustration: DISK PUZZLE]