Books by Francis Valk
Lectures on the Errors of Refraction and Their Correction With Glasses
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Strabismus, or Squint Latent and Fixed a Supplement to the Errors of Refraction
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Lectures on the Errors of Refraction and Their Correction With Glasses
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Lectures On The Errors Of Refraction And Their Correction With Glasses (1889)
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Lectures On The Errors Of Refraction And Their Correction With Glasses (1889)
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Lectures On The Errors Of Refraction And Their Correction With Glasses (1889)
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Lectures On the Errors of Refraction and Their Correction with Glasses: Delivered at the New York Post-Graduate Medical School, with Illustrative Cases from Practice, Both Private and Clinical
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