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Show New Screen Method ' As a substitute for glass elereoptl-cou elereoptl-cou slides, film strips may now be-shown be-shown on a screen from u flashlight projector and this method has beei made simpler still by a camera which enables the operator to make Ills own negative rolls, says I'opular Mechanics Mechan-ics Magazine. A length of the dim which will give us many pictures as would 30 pounds of glass slides weighs hardly an ounce. The rolls can be printed directly on positive film for use In the projector. With this outfit, travelers may have a convenient record rec-ord of their trip to show their friends and the apparatus Is especially serviceable serv-iceable to lecturers, etc. |