Abstract
THE following simple method of making lantern slides of line drawings may be of interest. Where the diagrams are not already available in printed form, they are drawn in white chalk on a blackboard and photographed directly. The photographic negative so obtained is mounted and bound as a lantern slide, the resulting projection on a screen being a black line drawing on a white background.
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YARNOLD, G., HEATH, L. Lantern Slides of Line Drawings. Nature 156, 574 (1945). https://doi.org/10.1038/156574c0
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DOI: https://doi.org/10.1038/156574c0
