nce from the bridge F to the
bottom bridge E just 24 in. This dimension and those for the frets
should be made accurately. Six holes, 3/16 in. in diameter, are
drilled in the bottom bridge for pins. The turning plugs B and
strings can be purchased at any music store.
--Contributed by J. H. Stoddard, Carbondale,Pa.

** Greasing the Front Wheels of an Automobile [320]

The front wheel bearings of an automobile can be greased without
removing the wheels in the following manner: Remove the hub caps
and fill them with heavy grease and then screw them in place.
Continue this operation until the grease is forced between all the
bearings and out through the small clearance on the opposite side
of the wheels. This should be done at least once every month to
keep bearings well lubricated and free from grit. Dirt cannot
enter a well filled bearing as easily as muddy water can enter a
dry bearing.
--Contributed by Chas. E. Frary, Norwalk, O.

** Removing Mold [320]

Mold on wallpaper can be removed at once by applying a solution of
1 part salicylic acid in 4 parts of 95% alcohol.

** HOW TO MAKE A PAPER BOAT [321]
A Light Boat That Can Be Easily Carried

[Illustration: The Paper Boat Is Light and Easy to Propel]

Now you might think it absurd to advise making a paper boat, but
it is not, and you will find it in some respects and for some
purposes better than the wooden boat. When it is completed you
will have a canoe, probably equal to the Indian's bark canoe. Not
only will it serve as an ideal fishing boat, but when you want to
combine hunting and fishing you can put your boat on your
shoulders and carry it from place to place wherever you want to go
and at the same time carry your gun in your hand. The material
used in its construction is inexpensive and can be purchased for a
few dollars.

Make a frame (Fig. 1) on which to stretch the paper. A board 1 in.
thick and about 1 ft. wide and 11-1/2 ft. long is used for a keel,
or backbone, and is cut tapering for about a third of its length,
toward each end, and beveled

[Illustration: Detail of Framework Construction]

on the outer edges (A, Fig. 2). The cross-boards (B, B, Fig. 2)
are next sawed from a pine board 1 in. thick. Shape these as shown
by A, Fig. 4, 13 in. wide by 26 in. long, and cut away in the
center to avoid useless weight. Fasten them cross-wise to the
bottom board as shown in Fig. 1 and 2, with long stout screws, so
as to divide the keel