ply a coat of banana oil or lacquer.

Thermometers of suitable size can be bought in either brass or
nickel. They have holes through their top and bottom ends through
which metal paper fasteners can be inserted, and these in turn put
through holes punched in the copper back.

** To Make an Electric Piano [247]

Make or buy a table, about 3 ft. long and 1 ft. or more wide, and
about 2-1/2 ft. high. Nail a board, A, Fig. 1, about 8 in. wide
and of the same length as the table, to the table, as shown in the
illustration. Paint the table any color desired.

Purchase a dozen or so battery electric bells (they are cheaper if
bought by the dozen) and screw them to the board, as in Fig. 2.
Arrange the bells in the scale shown at B, Fig. 2. Bore two holes
near the posts of each bell for the wires to pass through.

Buttons for the bells may be purchased, but it is cheaper to make
them in the following way: Take a piece of

[Illustration: How the Electric Piano is Constructed]

wood and cut it round, about 2-1/2 in. in diameter and 1/4 in.
thick, Fig. 3, and bore two holes, C and D, through it. Then get
two posts, about 1 in. long, (battery posts will do) and put them
through the holes as in Fig. 4. Cut out a piece of tin, 3/8 in.
wide, punch a hole through it and put in under post E, so that
when it is pressed down, it will touch post F. It may be either
nailed or screwed down.

Make two holes in the table for each button and its wires, as at
H, Fig. 2. Nail or screw the buttons to the table, as shown in
Fig. 5, with the wires underneath. The connections are simple: I,
Fig. 5, is a wire running from one end of the table to the other
end, attached to a post at each end; J is another wire attached in
the same way; L is the carbon wire running from the batteries to
I; M is the zinc wire running from the batteries to wire J; 0
indicates the batteries; P is a wire running from J to one post of
a button; Q is another wire running from the other post of the
button to one of the posts of the bell; R is a wire running from I
to one post of the bell. When the button S is pressed, the bell
will ring. Each button should be connected with its bell in the
same way.
--Contributed by Vincent de Ybarrondo.

** Imitation Arms and Armor - PART III [248]

Maces and battle-axes patterned after and made in imitation of the
ancient weapons which were used from the

[Illustration: Ancient Weapons]

fourteenth to the sixteenth ce