_Goette_, 59. _Gomperz, Prof. Hein._, 74. _Hartmann, Max_, 59. Hate, 68, 69. Heredity, 45, 57. _Hering, E._, 62. ‘Hunger and Love’, 65. Imitation impulse, 16. Immortality, 50, 54, 56–62, 72. of protozoa, 60. of unicellular beings, 59. Impulse, 7, 14, 22, 51. Conscious, 3. Contemned, 38. Imitation, 16. Libidinous, 68. of revenge, 14. Play, 24. Repressed, 20. Sadistic, 69. Stages of, 51. towards higher development, 51. towards perfection, 52–3. Inertia, in organic life, 45. Infantile: influences, 22. life, 44. psychic life, 43. sex-life, 18, 20. Inferiority complex, 21. Inheritance tendencies, 73. Inherited instinctive dispositions, 49. Instability, conditions of, 3. Instinct, 5, 6, 41, 46, 48–53, 64–8, 70, 73–4, 77, 79–80, 82–3. Aim of, 46. compelling repetition, 46. Conception of, 44–5. Conservative, 46, 48; c. ego-, 54; c. organic, 47; c. sexual, 50. Death-, 54–5, 58–9, 62–3, 67–9, 71–3, 77, 79, 82–3. Destruction-, 79. Ego-, 51, 54–5, 64, 66–8, 79; Libidinous nature of, 79. Egoistic-, 79. excitations, 42, 81. First, 47. Foregoing the satisfaction of, 13. for reunion, 76. Inborn, 5. Libidinous, 67–8, 79. Life-, 50–1, 54–5, 57, 62–3, 67–8, 73, 77, 79, 82. Narcissistic, 79. Nature of, 44. Object-, 79. of self-assertion, 48. Part-, 48, 69, 70, 80. Power-, 14, 48. Regressive character of, 76. Repression of, 52. Self-preservative, 5, 48, 49, 64, 66, 67, 68, 79. Sexual, 49–51, 54, 55, 57, 63–8, 70, 72, 78, 79; libidinous, 79, libidinous components of, 69, origin of, 74. Theory of, 68, 70, 76. Two kinds of, 57. Unsatisfied, 6. Vital, 63, 64. Introversion, 66. Investment-energy, quiescent (bound) and free-moving, 30. _See_ Charge. Jealousy, 14, 21, 22. _Jung, C. G._, 23, 67. Katabolic processes, 63. Libido, 64–7, 79. concept, 65, 70, 79. development, 66. directed towards the ego, 65–6. distribution, 39–40. Narcissistic, 66–7, 69, 79. Oral stages of, 69. quantities, 67. Reservoir of, 66. theory, 40, 63, 64, 67. Life, 47–8, 50, 55, 58, 62, 63. Beginnings of, 79. Dawn of, 51. Forces tending to preserve, 62. Goal of. _See under_ Goal. -instincts. _See under_ Instincts. Instinctive, 62. Length of, 56. Love-, 69. Menace to, 36. process, 71. Prolongation of, 54, 58, 63, 73. Properties of, 47. Renewal of, 57, 71, 73. Rhythm in, 50–1. Stimuli dangerous to, 76. _Lipschütz, Alex._, 59, 60, 71. _Loeb, J._, 61. Love, 21, 68, 69. _Low, Barbara_, 71. _Marcinowski_, 21. Masochistic tendencies of the ego, 10. Masochism, 70. primary, 70. _Maupas_, 60. Mechanical: concussion, 39. force, 39. shock, 8. stimuli, 7. Memory, 22, 28. -records, 27. -traces, 27–8; repressed, 44. Metabolism, 58, 61, 71. Metapsychology, 1, 26, 35.