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The British Journal of Ophthalmology logoLink to The British Journal of Ophthalmology
. 1943 Jan;27(1):1–12. doi: 10.1136/bjo.27.1.1

A POSSIBLE FALLACY IN THE USE OF THE CROSS-CYLINDER*

F A Williamson-Noble 1
PMCID: PMC510291  PMID: 18169891

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