space and duration,233; Kantand phenomenal,233; as a freecause,235.Sensations, intensity of,1ff.,7ff.,20ff.,40,42,47,72f.; art yieldingonly,17; and external causes,20ff.;peripheral, and muscular effort,24,26;peripheral, and violent emotions,31;magnitude of,31,32,47,72; affectiveand representative: affective,32ff.,72f.;and organic disturbance,32f.;pleasure and pain,33ff.;affective, and free movements,33;representative,39ff.,73,90;medium,41; representative, measuredby external causes,42; ofsound,43f.; of heat and cold,46f.,64;of pressure and weight,47f.;increase of, and sensation of increase,48;as quantity or quality,48; of movement,50;of light,50ff.; measurement ofluminous,52ff.; psychophysicsattempts to measure,55ff.,62,63,225;equal and identical,57,62,63,64,69;law connecting stimulus and,60f.;as quantities,62,65,66; addition of,64;considered as a sum,65,67; how quantitativedifferences set up between,71f.;as pure quality,72; and space,92,93,95;can space be built up from,94;simultaneous and identical,95;of motion, indivisible,112;influence of language on,131;not objects but processes,131;altered by repetition,131;physics treats, as signs of reality,223.Series, natural, of numbers,2,80;double aspect of each term in a,124,226;physical and psychical,210."Several," use of, implies space,122.Shape, as quality of matter,205.Simplicity, different senses of, indynamism and mechanism,141.Simultaneity, implies space,95;measuring duration and counting,108f.;as connecting link betweenspace and duration,110; definition of,110;in measuring velocity,114,117; used in definingequal intervals of time,116,119;in space nothing but,116,206,227;and astronomical prediction,116f.,193ff.;dealt with by mathematics,119; attemptedrepresentation of succession by,180,221;all relations not translatable into,are scientifically unknowable,234.Sleep, and perception of duration,126.Smell, illustration from associations of,161f.Social life, self with well-defined statesbetter adapted to,128,137,139,167,231;more important than our inner life,130;intuition of homogeneous medium as steptowards,138,163,236.Solidification, of an act, in space,112;of changing feelings, promoted by languageand external objects,129f.; of sensationsowing to language,131; of ideas on surfaceof consciousness,135,166,168; of consciousstates, promotes social life,231; of consciousstates, how brought about,237.Sorrow, an increasing,11.Sound, sensations of,43ff.; intensityof,43ff.; pitch of,45; whyclassified as higher and lower,45f.Space, and magnitude,2; introducedinto perception of duration,74;article on number and,75n.;intuition of, implied in counting,77ff.,83f.,225; material objectscounted in,85f.; conscious statesnot countable unless symbolicallyrepresented in,86f.,89,90; ideaof impenetrability shows interconnexionof number and,89; projection of psychicstates into,90,101,106,231; time,but not duration, as spatial,90f.;reality of,91f.,95, no; as commonelement in certain sensations,92;Kant's theory of,92,93; nativisticand empirical theories of,93;Müller's theory,93; Lotze's theory,93;Bain's theory,93; Wundt's theory,93;attempt to build up, from inextensivesensations,93f.,99f.,222; definitionof,95,98; as a homogeneous medium withoutquality,95ff.,98; not so homogeneousfor animals,96; intuition of homogeneous,peculiar to man,97,236; intuition of,necessary to counting, abstraction and speech,97;is time, as homogeneous medium, reducibleto,98f.; time as ghost of,99; durationexpressed in terms of,101, no; order ofsuccession implies,101f.; symbolicalrepresentation of succession,as line implies,103; time as fourthdimension of,109; simultaneityas connecting link between timeand, no; and motion, no ff.;projection of act into,112,181;infinitely divisible,113,114; ashomogeneous element in motion,115;the only measurable element inmotion,116,118,119; nothing butsimultaneities in,116,206,227;alone homogeneous,120; no durationor succession in,120227; self perceivedby refraction through,128,129,137,167,183,217,223; intuition of homogeneous,as step towards social life,138,163,236;connexion between perception of, and generalideas,163; is time space?181,190,221;time confused with, in prediction,191ff.;as result of stripping matter of concretequalities,205; separated from time byKant,222; must be eliminatedin studying inner phenomena,229;Kant confused time with,232;Kant put the free self outside,233;we usually live and act in, not induration,233; Kant on time and,233;existence of homogeneous,assumed,236; as a "form ofsensibility,"236; intuition of,what it accomplishes,236.Spectrum, colours of the,51,54,57.Spencer, H., on gracefulness,13;on expression of fear,30.Spinoza, on modes of thought andmodes of extension,147; oncausality and apparent successionin time,208; conception ofcausality which leads to,208,213;Spinozistic mechanism,209.Spontaneity, idea of, simpler thanthat of inertia,141; force as afree,217; settling down intoinertia,220.Stimulus, law connecting sensationwith,60ff.; effect of slight butcontinuous,106.Subjective, definition of,83.Succession, attempt to derive extensityfrom,99f.,222; of consciousstates compared to rhythm oftune,100; without distinction,101; order of, implies distinctionand therefore space,101f.; cannotbe symbolized as a line withoutidea of space,103f.; within theego succession, without, onlyexternality,108,227; exists onlyfor conscious spectator,108,120,227;endosmosis between externalityand,109,228; none inspace,120,227; attempt to representby simultaneity,180,221;causality as regular,202f.; noregular, in deep-seated psychicstates,203; attempt to transforminto inherence,209; apparent, ofphenomena,201,227; of phenomenaand conscious states,212,216;Leibniz and,213; attributedto things,228; idea of measurabletime arises from compromisebetween simultaneity and,228.Suggestion, in art,14ff.;in music,15,44.Symbolical Representation, necessary tocounting of conscious states,86f.,89,90;of a line, implies idea of space,103;pure duration cannot be measured without,105;of duration, derived from space,110; oftime as homogeneous medium,124f.; ofelements of a conscious state,163; of the selfand its feelings, given by determinism,171;of process of coming to a decision,175ff.;leads to determinism,178; of time as aline,182; cannot be substitutedfor dynamic process,190; of ego,confused by Kant with ego itself,232.Sympathy, physical, and grace,13;with Nature.16; with misfortune,19.Tannery, J., as critic of Fechner,67.Taste, as changeable,131."Things in themselves," Kant and,233,234,238.Time, sounds not counted in,87,91;as homogeneous medium in whichconscious states are ranged,90,121;as homogeneous medium, nothingbut space,91,98; distinctfrom pure duration,91,98;is it unbounded medium distinctfrom space?98f.; as ghost ofspace,99; attempt to deriveextensity from succession in,99f.;two possible conceptions of,100;is it measurable?107f.; apparentlyhomogeneous,107; as dealtwith by the astronomer andphysicist,107,192ff.; as measuredby clocks,108f.; as fourth dimensionof space,109; concrete and abstract,114;science eliminates duration from,115f.;definition of equal intervals of,115;how it comes to be represented ashomogeneous,124f.,237; as symbolicalimage of duration,125f.; asquality and quantity,129; confusionof, with concrete duration,155;is time space?181,190,221;not a line,181; confused withspace,181f.,191f.,232; as anumber,195,197; separated fromspace by Kant,222,232; idea ofmeasurable, arises from compromise,228;Kant's mistake about,232; Kant onspace and,233; science could dealwith, if homogeneous,234; Kant putfreedom outside,235; heterogeneousduration replaced by homogeneous,237.Tortoise, and Achilles,113f.Town, objects in, seem to live andgrow old,129f.Tradesmen, their avoidance ofround numbers,123.Transcendental Aesthetic,Kant'stheory of space in his,92,93.Units, those forming a numberidentical,76; also distinct,77;space implied in counting,79;every number both unit andsynthesis of,80; two kinds,ultimate and provisional,80f.;if divisible, then extended,82;split up by arithmetic,84; regardedby common sense as indivisible,84.Unity, attaching to number,76; all,due to simple act of the mind,80f.;of act and of object,81,83;Spinoza and the divine,208.Universe, hypothetical accelerationof motions of,116,193ff.; moleculartheory of,143; vague personalityascribed to,213.Velocity, measurement of,107,114;notion of, analysed,117; uniformand variable,117f.Vis inertiae,38;vis viva,151.Vulpian, on hemiplegia,22.Weber, his law,60f.Weight, sensation of,25f.;47ff.Will, see also Free Will: willing forwilling's sake,157,158.Words, see language.Wundt, on paralytic's sensation offorce,21; on connexions of vocaland auditory nervous filaments,44;theory of space,93.Zeno, on Achilles and tortoise,113.