1. A new series of metric test-letters and words for determining the amount and range of accomodation Author(s): Oliver, Charles A. (Charles Augustus), 1853-1911 author Publication: [New York?] : [publisher not identified], [1886?] Subject(s): Visual AcuityVision Tests -- instrumentation
2. New series of metric test-letters and words for determining the amount and range of accomodation Author(s): Oliver, Charles A. (Charles Augustus), 1853-1911, author Publication: [Boston?] : [publisher not identified], [1886?] Subject(s): Visual AcuityVision Tests -- instrumentation
