An improved astigmatic chart

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