intellect and manufacture,137,138Humanity in evolution,134,137-9,142,147,158,181,184,185,264-71.SeeCulminating points, etc.goal of evolution,266,267Huxley,38Hydra and individuality,13υλη of Aristotle,353Hymenoptera, the culmination of arthropod and instinctive evolution,134,173-4as entomologists,146,172-3organization and instinct in,140paralyzing instinct of,146,172,173-4social instincts of,101,171Hypostasis of the unity of nature, God as,196-7,322,356Hypothetical propositions characteristic of intellectual knowledge,149-50Idea or form in ancient philosophy,49,314,316-7,318,329-30in ancient philosophy, ειδος,314-5in ancient philosophy, Platonic,48and image in Descartes,280Idealism,232Idealists and realists alike assume the possibility of an absence of order,220,232Identical structures in divergent lines of evolution,55,60-1,62,69,74-7,86,119Illumination of action the function of perception,5,206,307Image and idea in Descartes,280distinguished from concept,160-1,280Imitation of being in Greek philosophy,324,327of instinct by science,168-9,173-4of life in intellectual representation,4,33,88-9,101,176,208,209,213,226,259,341,365of life by the unorganized,33,35,36of motion by intelligence,305,307-8,312,313,329.SeeImitation of the real, etc.of the physical order by the vital,230of the real by intelligence,258,270,307Immobility of extension,155and plants,108-13,118,119,130of primitive and torpid animals,130-1relative and apparent; mobility real,155Impatience, duration as,10,339-40Impelling cause,73Impetus, vital, divergence of,26-7,51-5,97-105,110,118-9,126-7,131,134-6,257,258,266,270vital, limitedness of,126,141,148-9,254vital, loaded with matter,239vital, as necessity for creation,252,261vital, transmission of, through organisms,25,27,79,85,87,88,230,231,250,251vital,SeeImpulse of lifeImplement, the animal, is natural: the human, artificial,139-43artificial,137-40,150-1constructing, function of intelligence,159,182-3life known to intelligence only as,162matter known to intelligence only as,161,198natural,141,145,150organized,141,145,150unorganized,137-9,141,150-1Implicit knowledge,148Impotence of intellect and perception to grasp life,176-8Imprisonment of consciousness,180-3,264-6Impulse of life, divergence of,26,27,51-5,97-105,110,118-9,126-7,131,134-6,257,258,266,270limitedness of,126,141,148-9,254loaded with matter,239tendency to mobility,131,132as necessity for creation,252,261negates itself,247,248prolonged in evolution,246prolonged in our will,239transmitted through generations of organisms,25,26,79,85,87,230,231unity of,202,250,270Impulsion and attraction in Greek philosophy,323-4release and unwinding, the three kinds of cause,73given to mind by matter,202Inadequacy of act to representation, consciousness as,143Inadequate and adequate in Spinoza,353Inanition, illustrating primacy of nervous system,124noteIncoherence,236.SeeAbsence of order, Chance, Chaosin nature,104Incommensurability of free act with conceptual idea,47,201of instinct and intelligence,167-8,175Incompatibility of developed tendencies,104,168Independent variable, time as,20,335-6Indetermination,86,114,126,252,253,326.SeeAccident in evolutionIndeterminism in Descartes,345Individual, viewed by intelligence as aggregate of molecules and of facts,250-1and division of labor,140in evolutionist biology,169,171,246noteand genus,226-9mind in philosophy,191aesthetic intuition only attains the,177and society,260,265transmits the vital impetus,250,259,270Individuality never absolute,x,12,13,16,19,42,260and age,15-23,27,43corporeal, physics tends to deny,188,189,208.SeeInterpenetration, Obliteration of outlines, Solidarity of the parts of matterand generality,226-8the many and the one in the idea of,x,258as plan of possible influence,11Individuation never absolute,x,12-16,43,260as a cosmic principle in contrast with association,259-60property of life,12-5partly the work of matter,257-8,259,270Indivisibility of action,94,95of duration,6,308of invention,164of life,225,270-1.SeeUnityof life of motion,307-11Induction in animals,214certainty of, approached as factors approach pure magnitudes,222,223and duration,216and expectation,214-6geometry the ideal limit of,214-8,361.SeeSpace, Geometry, Reasoning, "Descending" movement of matter, etc.and magnitude,215,216repetition the characteristic function of intellect,164,199,205-16and space,216.SeeSpace as the ideal limit, Systems, etc.Industry,ix,161,162,164Inert matter and action,96,136,141,155,187,198,225,367in Aristotle,316,327,353bodies,7,8,12,14,20,21,156,159,174,186,188,189,204,213,215,228,240,241,298,300,341,342,346-8,360Creation of.SeeInert matter the inversion of lifeflux of,186,265,273,369and form,148,149,157,239,250genesis of,188homogeneity of,156imitation of living matter by,33,35,36imitation of physical order by vital,230instantaneity of,10,201and intellect,ix,31,141,159-62,164,165,167-8,175,179,181,186,187,195,196,197,198,205-12,216-9,224,264,270,319,369the inversion or interruption of life,93,94,98,99,128-9,153,177,186,189,190,196,197,201,203,208,216-9,231,235,236,239,240,245-50,252,254,256,258,259,261,264,267,272,276,319,339-40,343.SeeInert matter, order inherent inknowledge of, approximate but not relative,206the metaphysics and the physics of,195-6as necessity,252,264the order inherent in,40,103,153,201,207-12,216,226-7,230-6,245,251,263,274,319-20.SeeInert matter, inversion of lifepenetration of, by life,25,26,51,179,181,237,239,266,270,271and perception,12,206,226and the psychical,201,202,205,269,270,350,367solidarity of the parts of,188,202,207,241,257-9,270,271,352and space,10,153,189,204-11,214,244,250,251,257in Spencer's philosophy,365Inertia,176,224Infant, intelligence in,147,148Inference a beginning of invention,138Inferiority in evolutionary rank,174-5Influence, possible,11,189Infusoria, conjugation of,15development of the eye from its stage in,60-1,72,78,84and individuation,260and mechanical explanations,34,35vegetable function in,116Inheritance of acquired characters.SeeHereditary transmissionInnate knowledge,146-7,150-1Innateness of the categories,148,149-50Inorganic matter.SeeInert matterInsectivorous plants,107-9Insects,19,101,107,126,131,134,135,140-1,146,147,157,166,169,171-5,188apogee of instinct in hymenoptera,134,173-4consciousness and instinct,145,167,173continuity of instinct with organization,139,145fallibility of instinct in,172-3instinct in general in,169,173-4language of ants,157-8object of instinct in,146paralyzing instinct in,146,171,172-3social instinct in,101,157-8,171special instincts as variations on a theme,167.SeeArthropods in evolutionInsensible variation,63,66Inspiration of a poem an undivided intuitive act, contrasted with its intellectual imitation in words,209,210,258.SeeSympathyInstantaneity of the intellectual view,31,70,84,89,199,201-2,207,226,249,258,273,300-6,311,314,331-3,342,351,352,Instinct and action on inert matter,136,141in animals as distinguished from plants,170in cells,166and consciousness,143-5,166,167,173,174,175,186culmination of, in evolution,133,174-5.SeeArthropods in evolution, Evolutionary superiorityfallibility of,173-4in insects in general,169,173-4and intelligence, xii,51,100,103,113,116-8,132-7,141-3,145,150,152,159,168-70,173-9,184-5,186,197-8,238,246,254,255,259,267,268,343,345,366and intuition,177,178-9,181object of,146-52,165,168,172-9,186,189,195,234,254and organization,23-4,138-40,145,166-8,171-2,173,176,193,194,264paralyzing, in certain hymenoptera,146,171,172-3in plants,170,171social, of insects,101,157-8,171Instinctive knowledge,148,167,168,173-4learning,193