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>A COMBINED VISUAL AND ASTIGMATIC TEST-CARD OF WORDS MADE UP OF LETTERS CONFUSING TO THE ASTIGMATIC EYE---REMARKS ON ASTIGMATISM, CHARACTERISTIC MANNERISMS.
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A COMBINED VISUAL AND ASTIGMATIC TEST-CARD OF WORDS MADE UP OF LETTERS CONFUSING TO THE ASTIGMATIC EYE---REMARKS ON ASTIGMATISM, CHARACTERISTIC MANNERISMS.