Stillings pseudo-isochromatische Tafeln zur Prüfung des Farbensinnes.

  • Jakob Stilling
Date:
1929
Catalogue details

Licence: Public Domain Mark

Credit: Stillings pseudo-isochromatische Tafeln zur Prüfung des Farbensinnes. Source: Wellcome Collection.

    7/84
    to be looked for. It should be given in the ist possible daylight, at a distance offD cm. Nearer anproach must be avoided. [All the areas also in lesser number insefed on the differently caloured backspund) are to be indicated by the subject wb points to them with a rod, The small polts Berticularly must not be omitted. Fotthis purpose, it is advisable to begin afthe left and to indicate the required areaj, working up and down in rows. Normal subleets will thus solve the problen. Omissions & points are suggestive of ddect.
    digitised image 1
    digitised image 2
    digitised image 3