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Dip
the brush in the benzine and clean the spindles and spindle holes,
and the teeth of the escapement wheel. After washing a part, wipe
the brush on the rag and rinse in the benzine; this should be
repeated frequently, until no more dirt is seen.
When the clock has dried, oil the spindle holes carefully; this
may be done with a toothpick or a sliver of woodcut to a fine
point. Oil the tooth of the escapement wheel slightly, using a
fine brush.

** How to Make Blueprint Lantern Slides [120]
Lantern slides of a blue tone that is a pleasing variety from the
usual black may be made from spoiled or old plates which have not
been developed, by fixing, washing well and then dipping five
minutes in the following solution:
A. Green Iron ammonium citrate 150 gr.
Water 1 oz.
B. Potassium ferrocyanide 50 gr.
Water 1 oz.
Prepare the solutions separately and mix equal parts for use, at
the time of employment. Dry the plates in the dark, and keep in
the dark until used. Printing is done in the sun, and a vigorous
negative must be used, says the Moving Picture World.


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