long. The rod is wrapped with sheet
asbestos, cut in 1/2-in. strips.
The length of the heating wire must be determined by a test. This
wire can be purchased from electrical stores. Stovepipe wire will
answer the purpose when regular heating wire cannot be obtained.
The wire is coiled around the asbestos-covered rod, so that no
coil will be in contact with another coil. If, by trial, the coil
does not heat sufficiently, cut some of it off and try again.
About 9-1/2 ft. of No. 26 gauge heating wire will be about right.
The connection to an electric-lamp socket is made with ordinary
flexible cord, to which is attached a screw plug for making
connections.
** Glass-Cleaning Solution [31]
Glass tumblers, tubing and fancy bottles are hard to clean by
washing them in the ordinary way, as the parts are hard to reach
with the fingers or a brush. The following solution makes an
excellent cleaner that will remove dirt and grease from crevices
and sharp corners. To 9 parts of water add 1 part of strong
sulphuric acid. The acid should be added to the water slowly and
not the water to the acid.
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