Ferree, Clarence Errol, Rand, Gertrude, b.1886 · New York, etc. · leaf 34
ond- green falls off more rapidly than to ing to this it will be noted (charts yellow in the mid periphery of the ret- 1-4) that there is in this meridian a ina. In the center of the retina, which fairly close agreement in sensitivity to is fully sensitive to red and green, the red and yellow from… … Chart 4. Chromatic thresholds (enlarRcd scale) for Chart 3. Chromatic thresholds (enlarged scale) for the four colors nasal meridian. the four colors, temporal meridian. sharp decrease in sensitivity to red. of the strongly aroused red and green That is, from 60° to 86° there is much sensations.…
Ophthalmology · Vision · Color vision
Internet Archive · University of California Libraries · Public domain (published before 1931). Free to use for anything.
![An illustration from Histoire de mes ascensions : récit de vingt-quatre voyages aériens [1868-1877] (1880)](https://img.insideoutlibrary.com/img/200/ia-39002011210615.med.yale.edu-275-17.webp)
