Report of an examination of railroad men for color blindness: read before the Pennsylvania State Medical Society, May 22nd, 1879

Report of an examination of railroad men for color blindness: read before the Pennsylvania State Medical Society, May 22nd, 1879

Collection:
Medicine in the Americas, 1610-1920
Author(s):
Keyser, Peter Dirck, 1835-1897 author
Contributor(s):
Medical Society of the State of Pennsylvania.
Publication:
[Philadelphia?] : [publisher not given], 1879
Language(s):
English
Format:
Text
Subject(s):
Color Vision Defects -- diagnosis
Vision Screening
Railroads
Copyright:
The National Library of Medicine believes this item to be in the public domain (More information)
Extent:
pages 643-648
NLM Unique ID:
101667871 (See catalog record)
OCLC no.:
921338914
Permanent Link:
http://resource.nlm.nih.gov/101667871