REFRACTION AND HOW TO REFRACT: INCLUDING SECTIONS ON OPTICS, RETINOSCOPY, THE FITTING OF SPECTACLES AND EYE-GLASSES, ETC. By James Thorington, P. Blakiston's Son & Co., Philadelphia, 1907. 
 
Dark green with gilt spine title and decorative border to boards. Secure binding and clean pages with spine just barely shifted. 314 pages; with 215 illustrations. Third Edition. Illustrated.