t equal
distances, which should be about 1/8 in.

** Aluminum Polish [428]

An emulsion of equal parts of rum and olive oil can be used for
cleaning aluminum, says Blacksmith and Wheelwright. Potash lye,
not too strong, is also effective in brightening aluminum, and
benzol can be used for the same purpose.

A good polish for aluminum consists of a paste formed of emery and
tallow, the finish luster being obtained by the use of rouge
powder and oil of turpentine.

** Homemade Blowpipe [428]

Procure a clay pipe, a cork and a small glass or metal tube drawn
to a small opening in one end. Make a hole in the cork just large
enough to permit the tube to pass through tightly so no air can
pass out except through the hole in the tube. Put the tube in the
hole with the small opening at the top

[Illustration: A Pipe Blowpipe]

or projecting end. Push the cork into the bowl of the pipe and the
blowpipe is ready for use.
--Contributed by Wilbur Cryderman, Walkerton, Onto

** Substitute Sink or Bathtub Stopper [429]

Milk-bottle caps make good substitutes for the regular rubber
stoppers in sinks and bathtubs. The water soon destroys them, but
as a new one usually is had each day, they can be used until a
regular stopper is obtained.

A good permanent stopper can be made by cutting a hollow rubber
return ball in half, using one part with the concave side up. It
will fit the hole of any sink or bathtub. One ball thus makes two
stoppers at a cost of about 5 cents.

** Safety Tips on Chair Rockers [429]

Some rocking chairs are so constructed that when the person
occupying it gives a hard tilt backward, the chair tips over or
dangerously near it. A rubber-tipped screw turned into the under
side of each rocker, near the rear end, will prevent the chair
from tipping too far back.

** How to Make a Toy Flier [429]

While a great many people are looking forward to the time when we
shall successfully travel through the air, we all may study the
problem of aerial navigation by constructing for ourselves a small
flying machine as illustrated in this article. A wing is made in
the shape shown in Fig. 1 by cutting it from the large piece of an
old tin can, after melting the solder and removing the ends. This
wing is then given a twist so that one end will be just opposite
the other and appear as shown in Fig. 2. Secure a common spool and
drive two nails in one end, leaving at least 1/2 in. of each nail