s varies, and therefore the buoyancy will vary.

A model freighter is shown in Fig. 27. The hull of this boat can be
formed by two 1-1/2-inch planks. These will require a little hard work
to cut out; but, on the other hand, the effort will be entirely
justified by the pleasing appearance of the little craft that can be
produced in this way. A bow and stern block to raise the deck are cut
out and nailed in place, as shown. A cabin is also placed on the stern
of the craft, and this is formed by a block with a piece of cigar-box
wood placed on the top. The cigar-box wood should project a little over
the edges to form a canopy. The center of the deck can be raised by a
third block; and three independent blocks, two large ones and a small
one, form the main cabin. Sandwiched in between these blocks are three
pieces of cigar-box wood. The remaining details of the craft are so
simple that they may easily be made by following the diagram.

[Illustration: FIG. 29]

Let us turn our attention to model war-ships. A torpedo-boat destroyer
is clearly illustrated in Figs. 28 and 29. This is very simple to
construct and makes a pleasing craft when finished. The hull is formed
by two blocks. One of these forms the raised deck on the bow of the
boat. The cabin is built up on this raised deck. It will be seen that
the part of the hull that rests in the water is formed by one block. In
building boats of this nature the constructor should be careful to keep
them long and slender, since torpedo-boat destroyers are always of this
type. They are high-speed craft, and their displacement must therefore
be as small as possible. Some of these boats carry four stacks and some
two. The author prefers four stacks as giving the boat a better
appearance than two. The two little cabins near the stern of the boat
are placed there merely to take away the plainness of construction. The
guns mounted forward and aft are merely round pieces of wood with a
piece of wire bent around them and forced into a hole in the deck.

[Illustration: FIG. 30]

The boat-builder should not be satisfied with one or two of these craft;
he should make a whole fleet. This will afford the average boy a great
amount of pleasure, since he can add to his fleet from time to time and
have official launchings. Each boat can also be given a name and a
number. A little gray paint on the hull of these boats and black on the
stacks gives them a very presentable appearance.

[Illustra