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- Author(s):
- Theobald, Samuel, 1846-1930
- Publication:
- [Philadelphia? : s.n., 1882?]
- Subject(s):
- Oculomotor Muscles
Vision Tests
- Author(s):
- Vilas, C. H. (Charles Harrison), 1846-1920, author
- Publication:
- Chicago : Duncan Brothers, 1881
- Subject(s):
- Eyeglasses
Vision Tests
- Author(s):
- Bucklin, C. A. (Charles A.), author
- Publication:
- New York : Spencer Optical M'f'g Co., [1881]
- Subject(s):
- Vision Disorders -- diagnosis
Vision Disorders -- therapy
Vision Tests