Refraction and how to refract [electronic resource] : including sections on optics, retinoscopy, the fitting of spectacles and e

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Description

Refraction and how to refract [electronic resource] : including sections on optics, retinoscopy, the fitting of spectacles and eyeglasses, etc.

Author: Thorington, James, 1858-1944

Year: 1910

This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)

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