00000cam a22000001 4500 ocm13334203 OCoLC 20240909045503.9 821218s1868 enka b 000 0 eng 85664490 NLM eng NLM CGU COU OCLCF OCLCQ NLM IL4J6 OCLCO OCLCL OCLCQ QGJ 68040740R DNLM NLM 68040740R NLGGC 861463315 (OCoLC)13334203 eng ger RE929 .S6413x 1868 WW S673p 1868 Snellen, H. (Herman), 1834-1908. https://id.oclc.org/worldcat/entity/E39PBJjxy4RF7YfhJPfCyxpMfq Probebuchstaben zur Bestimmung der Sehschärfe. English Test-types for the determination of the acuteness of vision. Fourth edition London : Williams & Norgate ; New York : Germer Ballière, 1868. 6 pages illustrations ; 23 cm text txt rdacontent unmediated n rdamedia volume nc rdacarrier Imperfect copy: Illustrative matter wanting. Translation of Probebuchstaben zur Bestimmung der Sehschärfe. Includes bibliographical references. Vision Testing. Vision Tests Vision Examen. Vision Testing fast Vision Testing. nli Also issued on microfilm. [Bethesda, Md.] : National Library of Medicine, 1992. 1 microfilm reel : negative ; 35 mm.