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Books by Francis Valk

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2 books found
Strabismus, or squint, latent and fixed; a supplement to the errors of refraction
Strabismus, or squint, latent and fixed; a supplement to th…
By: Francis Valk
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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...
Lectures On The Errors Of Refraction And Their Correction W…
By: Francis Valk
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