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204 MOTION PICTURE HANDBOOK
of the seats. The emulsion became very soft in places, but next morning it was found that a total of less than five feet was damaged. The exchange men never knew of the occurrence until more than a month after, when they were told of it.
Moistening Dry Film. — Traveling exhibitors often find that a reel which has been a long time in use has become very dry and brittle. It may be remoistened and rendered pliable by unwinding into a large metal can, in the bottom of w'hich water has been placed, with a wire screen over it to keep the film from contact therewith. Cover tightly, set in a moderately warm place until the film is soft and pliable. Watch closely, however, since if made too moist the emulsion will stick to the back of the film when it is rewound.
It is even possible to give a film a glycerine bath, as follows: In a long, shallow pan place a solution of 30 parts of clear water to one part of glycerine. Make a drum of slats about six feet in diameter by about six feet long (for one thousand feet of film), and by revolving the drum draw the film very slowly through the liquid, winding on the drum with the emulsion side out. After the film is all on the drum, revolve it rapidly to throw off the surplus liquid, then continue to revolve the drum slowly until the film is dry. It should not be used for two or three days. Perform this operation in a room entirely free from dust, or you may seriously injure your film.
Due to lack of proper inspection it is usually advisable, where practical, to inspect the films at the theater before they are run. To do this place the reel on rewinder,. and rewind it very slowly, holding the edges between the thumb and forefinger with pressure enough to cup it slightly. By so doing you instantly detect all stiff or loose patches. Cut out the stiff ones and remake. Cement all loose patches and notch all split sprocket holes. If more than two sprocket holes are missing on one side — that is, in succession, of course — cut the film and make a patch. Inspection pays, and an ounce of prevention is worth a pound of cure. Managers, however, should not expect operators to inspect films for nothing. Such work is no part of an operator's duty and should by all means be paid for, aside from the operator's regular salary.
Stretched Film. — Ignorance, poor judgment, or carelessness in the drying room or the use of wrongly designed drying racks or drums is also responsible for much trouble. Film