The 2 vols. comprise, in its entirety, the well-known serial The optician's manual as published in the Keystone since 1890. The present issue of vol. I is the 5th edition of the original work. This volume was first issued in its present form in 1897. Vol. II supersedes the Supplement to The optician's manual, chapters 11-12. cf. Pref.
Contents:
v. 1. Chapters 1-10, inclusive: Introductory. The eye anatomically. Optics. Lenses. Numbering of lenses. The eye optically. The use and value of glasses. Outfit required. Method of examination. Presbyopia.--v. 2. Chapters 11-14, inclusive: Hypermetropia. Myopia. Astigmatism. Anomalies of the ocular muscles