. Physical researches on sensation [by] Frank Allen [and others]. ect for allthe fatigue colors. Jhe ilata for the two curves on white light anddarkness are given in Table 8. 754 W. A. Anderson [ &, 8 A general survey of all the fatigue curves, except those for equilibriumcolors, reveals three fairly distinct types, which change more or lessgradually from one type to the other. When the fatiguing color is any Table 8. Light and Darkness Curves Reflex Fatigue Reflex Fatigue X Normal Darkness Darkness White White .740m .720 .0249 .0260 .0259 .0234
. Physical researches on sensation [by] Frank Allen [and others]. ect for allthe fatigue colors. Jhe ilata for the two curves on white light anddarkness are given in Table 8. 754 W. A. Anderson [ &, 8 A general survey of all the fatigue curves, except those for equilibriumcolors, reveals three fairly distinct types, which change more or lessgradually from one type to the other. When the fatiguing color is any Table 8. Light and Darkness Curves Reflex Fatigue Reflex Fatigue X Normal Darkness Darkness White White .740m .720 .0249 .0260 .0259 .0234 .0257 .700 .0199 .0208 .0220 .0190 .0197 .680 .0158 .0162 .0165 .0155 .0162 .660 .0142 .0139 .0148 .0132 .0148 .6i0 .0136 .0133 .0140 .0125 .0137 .620 .0125 .0125 .0127 .0116 .0128 .590 .0111 .0110 .0110 .0106 .0120 .550 .0118 .0118 .0115 .0115 .0128 .530 .0126 .0131 .0128 .0121 .0138 .500 .0150 .0156 .0157 .0139 .0165 .480 .0187 .0201 .0198 .0183 .0205 .460 .0233 .0259 .0260 .0228 .0260 .440 .0300 .0312 .0340 .0298 .0339 .420 .0404 .0426 .0462 .0413 .0459. ■40fi AS SO ss -to -is no noFig. 29 Faliflue Curve \ u \ 13 C I\ \ 1 111 i J A— \\ \\ \V t1t1 \ / II 1 o, ve. L ■ngth .^ i» 40^ as SO SS to iS no ns Fig. 30 hue of red, there is always an enhancement in the extreme red andorange-red, the amount of which is less for the fatigue color, .630^ thanfor those of longer wave length. The depression in the brightness of June, 1024] Reflex and Anomalous TiiiciiROMATiSM 755 the green region of the spectrum increases in amount with a decrease inthe wave length of tlie red fatiguing color, while the violet end showsalwavs a distinct lowering of the physiological luminosity. Theequilibrium curves for yellow fatiguing colors sej»arate the red type fromthe green, or second tyi>e. Iatiguing with green gives an enhancementin the red, the amount of which decreases as the fatigue cohjr movestowards the hlue, the blue showing little or no effect on the longer redwaves; on the orange-
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