visions frequently unlike vivid visualisations; phantasmagoria;
hallucinations; simile of a seal in a pond; dreams and partial
sensitiveness of brain; hallucinations and illusions, their causes;
"faces in the fire," etc.; sub-conscious picture-drawing; visions
based on patched recollections; on blended recollections; hereditary
seership; visions caused by fasting, etc.; by spiritual discipline
(see also 47); star of Napoleon I.; hallucinations of
great men; seers commoner at some periods than at others;
reasons why.

NURTURE AND NATURE

Their effects are difficult to separate; the same character
has many phases; Renaissance; changes owing merely to
love of change; feminine fashions; periodical sequences of
changed character in birds; the interaction of nurture and
nature.

ASSOCIATIONS

Derived from experience; especially from childish recollections
(see 141); abstract ideas; cumulative ideas, like composite
portraits (see also Appendix, "Generic Images," p. 229);
their resemblance even in details.

PSYCHOMETRIC EXPERIMENTS

Difficulty of watching the mind in operation; how it may
be overcome; irksomeness of the process; tentative experiments;
method used subsequently; the number of recurrent