expert in the management of his machine.

Putting the Machine Together.

Having obtained the necessary material, the first move
is to have the rib pieces steamed and curved. This curve
may be slight, about 2 inches for the 4 feet. While
this is being done the other parts should be carefully
rounded so the square edges will be taken off. This
may be done with sand paper. Next apply a coat of
shellac, and when dry rub it down thoroughly with fine
sand paper. When the ribs are curved treat them in
the same way.

Lay two of the long horizontal frame pieces on the
floor 3 feet apart. Between these place six of the strut
pieces. Put one at each end, and each 4 1/2 feet put
another, leaving a 2-foot space in the center. This will
give you four struts 4 1/2 feet apart, and two in the center
2 feet apart, as shown in the illustration. This makes
five rectangles. Be sure that the points of contact are
perfect, and that the struts are exactly at right angles
with the horizontal frames. This is a most important
feature because if your frame "skews" or twists you
cannot keep it straight in the air. Now glue the ends
of the struts to the frame pieces, using plenty of glue,
and nail on strips that will hold the frame in place while
the glue is drying. The next day lash the joints together
firmly with the shoe thread, winding it as you would to
mend a broken gun stock, and over each layer put a