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Start Over Subjects Ocular Physiological Phenomena ✖Remove constraint Subjects: Ocular Physiological Phenomena Authors Perry, C. H. (Charles Humphrey), 1844- author ✖Remove constraint Authors: Perry, C. H. (Charles Humphrey), 1844- author Titles Astigmatism: according to, and contrary to the rule ✖Remove constraint Titles: Astigmatism: according to, and contrary to the rule

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  • Astigmatism: according to, and contrary to the rule1