An improved astigmatic chart

Collection:: Medicine in the Americas, 1610-1920
Author(s):: Wallace, James, 1854- author
Publication:: [Philadelphia?] : [publisher not identified], [1889?]
Language(s):: English
Format:: Text
Subject(s):: Astigmatism -- diagnosis
Vision Tests -- instrumentation
Copyright:: The National Library of Medicine believes this item to be in the public domain. (More information)
Extent:: 3 pages
Illustrations:: Illustrations
NLM Unique ID:: 101741625 (See catalog record)
OCLC no.:: 1089840790
Permanent Link:: http://resource.nlm.nih.gov/101741625

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