INDEX OF SUBJECTS. 



1321 



PAGE 



Sensation, visual, of colour, elementary, 1107, 



1108, 1111 



,, ,, ,, ,, curve of, 1108 



,, ,, at fovea, . . 1087 



,, ,, ,, fundamental, 1107, 



1108, 1121 

 ,, ,, ,, in low intensity 



spectrum, 1107, 

 1111, 1117, 1118, 

 1120 

 ,, ,, ,, from mechanical 



stimulation, 1097 

 ,, ,, ,, at macula, . 108G 



,, ,, ,, in peripheral 



retina, 1084, 1085, 



1092, 1095, 1118 



,, ,, ,, primary, 1105, 1107, 



1112, 1121 

 ,, ,, ., simple, . . 1121 



,, ,, ,, stereoscopic, . 1144 



,, ; , ,, subjective, . 1096 



■ , ,, ,, theories of, 1105, 



1106, 1112, 1121 

 ,, ,, of colour brightness, 1076 



,, ,, ,, curve of, 1079, 



1102 

 ,, ,, ,, estimation 



of, 1077, 1078 

 ,, ,, ,, relative, 1078, 



1079 

 ,, ,, ,, specific, 1117 



,, ,, colour mixture in, 1081, 



1086, 1120 



,, ,, ,, binocular, 1124 



,, law of, 1082, 1102 



,, ,, theory of, 1118, 



1121 

 ,, ,, ,, tone of, 1053, 1054, 



1057, 1058, 

 1059, 1067, 

 1083 

 ,, ,, ,, indifferent 



parts of re- 

 tina, 1085,1114 

 ,, ,, ,, effect of con- 



trast on, 1060, 

 1061, 1064 

 ,, ,, fatigue 



on, . 1110 

 ,, ,, ,, relation to 



visual angle, 1055 

 ,, ,, conditions affecting, 1052 



,, ,, contrast in, . . 1060 



,, ,, ,, binocular, 1098, 



1099 

 ,, ,, ,, conditions 



affecting, 1061 

 ,, ,, estimation 



of, . . 1061 

 psychological 

 factors in, 1067 

 ., ,, ,, simultaneous, 



1060, 1062, 



1070, 1117 



,, ., ,, successive, 1060, 



1062 



,, theory of, 1064, 



1110, 1120, 1121 



,, curve of, 1068, 1072, 1073, 



1074, 1076 



5 j ? ? 



PAGE 



Sensation, visual, in different parts of 



retina, . . 1083, 1146 



„ ,, diplopia in, 1032,1033, 



1125, 1137 

 ,, ,, duration of, . . 1067 



,, ,, effect of pressure on 



eye on, . 1097 



,, ,, ,, repetition of 



stimuli on, 1068, 

 1069, 1072 

 ,, ,, ,, retinal fatigue 



on, 1058, 1059 



,, ,, Fechner's colours in, 1075, 



1123 

 flickering, 1069, 1076, 1077 

 ,, ,, >j in different re- 



gions of retina, 



1084 

 ,, ,, ,, influence of area 



of stimu- 

 lation on, 1072 

 duration of 

 stimulus, 



1070 

 ,, ,, ., induction 



on, . 1070 

 ,, ,, ,, intensity of 



stimulus, 



1069 

 ,, ,, ,, tension, 1072 



,, of form, . . . 1052 

 foveal, . . 1087, 1120 

 ,, ,, liminal stimu- 



lus for, 1087, 1103 

 ,, ,, photochromatic 



interval for, 1087, 

 1104 

 ,, ,, relation to 



visual purple, 1103 

 ,, fusion of disparate 



points in, 1125, 



1126, 1127 



,, point of, 1069, 1070, 



1072, 1098 



,, ,, in, theory of, 1076 



of green, 1107, 1108, 1109, 



1112, 1113, 1114, 1115, 



1117, 1121 



„ grey, 1113,1114,1118 



,, induction in, 1060, 1062, 



1076 

 ,, ,, homochroma- 



tic, . .1062 



,, spatial, 1062, 1066, 



1070, 1117, 1120 



,, ,, temporal, 1062, 



1066, 1070, 1117, 



1120 



,, ,, theory of. 1109, 



1114, 111.'. 



irradiation in, 1062, 1140 



of light, . .1052, 1053 



,, cerebral centre 



for, . . 1105 

 ,, ., from electrical 



stimulation, 517. 



1097 



at fovea, . 1087 



,, ,. ,, macula, 1086, 



1087 



