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- Author(s):
- Agnew, Cornelius Rea, 1830-1888
- Publication:
- [New York? : s.n., 1880?]
- Subject(s):
- Ophthalmoscopes
Refraction, Ocular
- Author(s):
- Home, Everard, Sir, 1756-1832, author
- Publication:
- [London] : [publisher not identified], [1796]
- Subject(s):
- Vision, Ocular
Refraction, Ocular
Lens, Crystalline