Bryn Mawr College monographs . fied hue, andnear the limits again in its proper hue. This is true in par-ticular of red on a dark day with a white surrounding fieldand of yellow on a dark day with a black surrounding fieldTo those who assign as the limit the first point at which th(color is no longer seen in its proper hue, such phenomenawould afford considerable annoyance especially if in determining the limit the stimulus were moved from within ouiand from without in. In the cases mentioned the limits foired obtained by the two procedures would have differed irsome meridians as much as 24°,
Bryn Mawr College monographs . fied hue, andnear the limits again in its proper hue. This is true in par-ticular of red on a dark day with a white surrounding fieldand of yellow on a dark day with a black surrounding fieldTo those who assign as the limit the first point at which th(color is no longer seen in its proper hue, such phenomenawould afford considerable annoyance especially if in determining the limit the stimulus were moved from within ouiand from without in. In the cases mentioned the limits foired obtained by the two procedures would have differed irsome meridians as much as 24°, and for yellow as much a 59°. In Figs. 9-19 the effects of such ranges of change of illumination as are represented by bright and dark days iiconjunction with preexposures and surrounding fields owhite, black, and gray of the brightness of the color anrepresented. In these maps the effect, both on the breadtliof the fields and the hue in which the color was sensed, irepresented. That is, not only is the total field mapped fo. Fig. 9.—Field for red. Brightday, gray surrounding field and pre-exposure. Fig. 10.—Field for red. Darkday, gray surrounding field and pre-exposure.
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Keywords: ., bookauthorbrynmawr, bookcentury1900, bookdecade1900, bookyear1901
