Abstract
DIAGRAMS, line drawings, tables, formulæ, etc., are best written or drawn directly on non-photographic type lantern slides. These have been variously prepared by dissolving Canada balsam in benzole1, toluene2, and other high boiling-point solvents. In all cases artificial heat is needed for quick drying, and a drop of the coating material (wastage) is formed in the bottom corner of the slides when stacked in a drying stand.
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References
Robinson, H. A., Brit. J. Photography, 84, 680 (1937).
Barber, D. R., J. Sci. Instr., 15 5, 174 (1938).
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SOMMER, W. Lantern Slides of Diagrams, Formulæ, etc. Nature 157, 591 (1946). https://doi.org/10.1038/157591c0
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DOI: https://doi.org/10.1038/157591c0
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