Refraction and how to refract
Subtitle: including sections on optics, retinoscopy, the fitting of spectacles and eye-glasses, etc
By: By James Thorington
Edition: 5th ed.
Publisher: P. Blakiston
Published: 1910
Place of publication: Philadelphia
Language: eng
Number of pages: 324
Notes: Includes index.

For later editions see his "Refraction of the human eye".