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Dangers from color blindness in railroad employees and pilots / by B. Joy Jeffries.
- Jeffries, B. Joy, 1853-
Public Domain Mark
About this work
Boston : Rand, Avery, & Co., 1878.
40 pages ; 21 cm
From the Ninth Annual Report of the State Board of Health
Includes bibliographical references
Where to find it
Location of original
This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)