96-98; capricious interpretation of obscure impressions, 99, 100.

_Involuntary Preperception_:--Effects of permanent Predisposition,
101, 102; effects of partial temporary Preadjustment, 102-105;
complete Pro-adjustment or Expectation, 106-109; subordination of
Sense-impression to Preperception, 109-111; transition from Illusion
to Hallucination, 111, 112; rudimentary Hallucinations, 112-114;
developed Hallucinations, 114-116; Hallucination in normal life,
116, 117; Hallucinations of insanity, 118-120; gradual development
of Sense-illusions, and continuity of normal and abnormal life; 120-123;
Sanity and Insanity distinguished, 123-126.

CHAPTER VII.

DREAMS.

Mystery of sleep, 127, 128; theories of Dreams, 128, 129; scientific
explanation of Dreams, 129, 130.

_Sleep and Dreaming_:--Condition of organism during sleep, 131, 132;
Are the nervous centres ever wholly inactive during sleep? 132-134;
nature of cerebral activity involved in Dreams, 134-136; psychical
conditions of Dreams, 136-138.

_The Dream as Illusion_:--External Sense-impressions as excitants of
Dream-images, 139-143; internal "subjective" stimuli in the sense-organs,
143-145; organic sensations, 145-147; how sensations are
exaggerated in Dream-interpretation, 147-151.

_The Dream as Hallucination_:--Results of direct central stimulation
151-153; indirect central stimulation and association, 153-155.

_The Form and Structure of Dreams_:--The incoherence of Dreams explained,
156-161; coherence and unity of Dream as effected (a) by
coalescence and transformation of images, 161-163; (b) by aground-tone
of feeling, 164-168; (c) by the play of associative dispositions,
168-172; (d) by the activities of selective attention stimulated by
the rational impulse to connect and to arrange, 172-176; examples
of Dreams, 176-179; limits of intelligence and rational activity in
Dreams, 180-182; Dreaming and mental disease, 182, 183; After-dreams
and Apparitions, 183-185.

NOTE.--The Hypnotic Condition, 185-188.

CHAPTER VIII.

ILLUSIONS OF INTROSPECTION.

Illusions of Introspection defined, 189-192; question of the possibility
of illusory Introspection, 192-194; incomplete grasp of internal
feelings as such, 194-196; misobservation of internal feelings: Passive
Illusions, 196-199; Active Illusions, 199-202; malobservation of
subjective states, 202-205; Illusory Introspe