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A Substitute for Microscope Cross-Wires

Abstract

IF a microscope or other apparatus fitted with cross-wires is not available, a convenient substitute may be made by placing a coverslip carrying two filaments of seccotine at right-angles between the lenses of an eyepiece.

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JANE, F. A Substitute for Microscope Cross-Wires. Nature 117, 724 (1926). https://doi.org/10.1038/117724d0

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