e treated with clear size and
fine sandpaper before varnishing. This will
prevent discoloring by the latter, and will also
allow the India ink markings to be made, which
latter will be a guide for the trimming of the
sails.

In order that any yacht, model or otherwise, may
be able to perform her best, it is essential that
she should have well setting sails. In fact, in a
model a badly setting sail will sometimes even be
enough to prevent her going to windward at all. By
well setting sails we mean sails that are
naturally flat and not made so by straining them
out on the spars. Light material, such as cambric
or light union silk, is best for this purpose, but
not a material that has any dressing in it.

This particular sail plan is very easy to mark
out. Lay your material out on a table or smooth
surface and pin it down with drawing-pins,
sufficiently stretching it so as to pull out any
creases. The length of the back edge of the
mainsail (which is called the leech) is measured
off 1-1/4 inches inside the edge of the cloth, and
a curve struck as illustrated. The other two sides
of the mainsail are then laid off and pencil lines
drawn. You will note that allowance must be made
for hemming the back edge of the mainsail. If your
sewing-machine has a hemmer, find out how wide a
hem it makes (the smaller the better), and make
allowance accordingly, twice the width of the hem
being necessary. Much depends upon the tension at
which the machine is set, so be careful that the
latter is sufficiently slack so that it does not
draw up the material.

The jib is marked out in the same manner, and, as
illustrated, the lines representing the positions
of the batten sleeves are drawn. The batten
sleeves are small pockets into which thin pieces
of cane (called battens) are inserted to help the
sail to set nicely. Unless the sail is a good cut
to begin with, however, the insertion of these
battens will never make it right. The sails should
now be cut out with a sharp penknife or scissors,
care being taken not