An act relative to the employment by railroad companies of persons affected with defective sight or color blindness
Medicine in the Americas, 1610-1920
Massachusetts. General Court, enacting jurisdiction.
Jeffries, B. Joy (Benjamin Joy), 1833-1915, former owner U.S. Naval Museum of Hygiene, former owner.
[Boston, Mass.?] : [publisher not identified], [1881?]
Railroads -- manpower
Visually Impaired Persons
Color Vision Defects
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