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- Author(s):
- Massachusetts. General Court, enacting jurisdiction.
- Publication:
- [Boston, Mass.?] : [publisher not identified], [1881?]
- Subject(s):
- Railroads -- manpower
Visually Impaired Persons
Color Vision Defects
Massachusetts
- Author(s):
- Castro, L., author
- Publication:
- México : Imp. de Horcasitas Hermanos, 1881
- Subject(s):
- Color Vision Defects
- Author(s):
- Fox, L. Webster (Lawrence Webster), 1853-1931, author
- Publication:
- Philadelphia : [publisher not identified], 1889
- Subject(s):
- Blindness
Color Vision Defects
Refractive Errors
- Author(s):
- Thomson, William, 1833-1907
- Publication:
- Chicago : American Medical Association Press, 1896
- Subject(s):
- Color Vision Defects
Philadelphia
- Author(s):
- Jeffries, B. Joy (Benjamin Joy), 1833-1915, author
- Publication:
- Boston : Houghton, Osgood and Company, 1879
- Subject(s):
- Color Vision Defects
Color Vision Defects -- diagnosis
Accident Prevention
- Publication:
- [Boston?] : [publisher not identified], [1880?]
- Subject(s):
- Color Vision Defects
Accidents, Occupational -- prevention & control
Vision Tests
Railroads
- Author(s):
- Holmgren, Frithiof, 1831-1897, author
- Publication:
- Washington : Government Printing Office, 1878
- Subject(s):
- Color Vision Defects
Accidents, Occupational -- prevention & control
Railroads
Ships
- Author(s):
- Jeffries, B. Joy (Benjamin Joy), 1833-1915
- Publication:
- [Boston? : s.n., 1878?]
- Subject(s):
- Color Vision Defects
- Author(s):
- Jeffries, B. Joy (Benjamin Joy), 1833-1915, author
- Publication:
- Boston : Houghton, Mifflin, and Company, 1883
- Subject(s):
- Color Vision Defects
Color Vision Defects -- diagnosis
Accident Prevention
- Author(s):
- Jennings, J. Ellis (John Ellis), 1864-1906, author
- Publication:
- Philadelphia : The F.A. Davis Company, 1896
- Subject(s):
- Color Vision
Color Vision Defects
Vision Tests
Railroads