Standards of form and color-vision required in railway service

Standards of form and color-vision required in railway service

Collection:
Medicine in the Americas, 1610-1920
Author(s):
Williams, Charles H. (Charles Herbert), 1850-1918 author
Contributor(s):
American Ophthalmological Society.
Publication:
[Boston?] : [publisher not identified], [1897?]
Language(s):
English
Format:
Text
Subject(s):
Color Vision Defects
Mandatory Testing
Railroads
Copyright:
The National Library of Medicine believes this item to be in the public domain (More information)
Extent:
24 pages
Illustrations:
Illustrations
NLM Unique ID:
101225218 (See catalog record)
Permanent Link:
http://resource.nlm.nih.gov/101225218