. Physical researches on sensation [by] Frank Allen [and others]. 235 .0230 .0235 .700 .0209 .0211 .0207 .0213 .660 .0171 .0170 .0170 .0173 .620 .0147 .0148 .0146 .0148 .590 .0138 .0138 .0137 .0140 .550 .0143 .0141 .0141 .0144 .530 .0153 .0148 .0152 .0155 .500 .0191 .0188 .0193 .0192 .480 .0233 .0230 .0232 .0231 .450 .0292 .0295 .0289 .0287 .433 .0330 .0334 .0331 .0333
. Physical researches on sensation [by] Frank Allen [and others]. 235 .0230 .0235 .700 .0209 .0211 .0207 .0213 .660 .0171 .0170 .0170 .0173 .620 .0147 .0148 .0146 .0148 .590 .0138 .0138 .0137 .0140 .550 .0143 .0141 .0141 .0144 .530 .0153 .0148 .0152 .0155 .500 .0191 .0188 .0193 .0192 .480 .0233 .0230 .0232 .0231 .450 .0292 .0295 .0289 .0287 .433 .0330 .0334 .0331 .0333 .420 .0363 .0365 .0355 .0358 * Reduced from Table 4 in paper On Reflex Visual Sensations, & , 7,p. 601; 1923. October, 1026] \ ut Visual Reflex Action 4o: intensities, show the equilibrium condition to be a characteristic ofthe color for all intensities. /oe loe — o /■ o a 5 100 Hi rect Action i^ —t- Art ipttXrmm ._ _ /. / .,^r=,r= T I ecsi-lntcnSity Pirect Action .Arf o^f(trunit -inf (.R(i< J. VO/M- kS -SO S5 bo bS IC IS Fic. 11. Direcl and reflex effects of sliniiilatinii the right eye with the auw lengths JOS ft and .4SV^. LENGTH .480^ (T.\BLE 12, MCi. 11) The color .480ju is also an equilibrium color at high intensities, as isshown by curve E. This color at a intensity was used to stimulate oneside of the right retina and the etTect was measured on a contiguousarea in the manner used by the writer in experiments performed todetermine the cause of contrast. The result of the present measurementsis exhibited in curve .1, which shows depre^^sion of the wht)le similar result, curve B, was obtained when the stimulation was uponthe retinal area with which measurements were made. Curves C and Dgive the elTects of stimulation with (5 and 7 intensities, which showenhancement of the green and violet sensations, but scarcely any effectupon the red. It is evident, therefore, that this color only possessese
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