Argument from analogy, 344.
uncertainty of, 345.

Arnold, Dr., quoted, 269.
Ascetism, 194.

Assimilation and discrimination,
different kinds of, 349.

Association fibres, 39.

Association of ideas, 196.

application of, in cultivating the
memory, 238, 243.

by contiguity, 197, 202.
by logic, 198.

by similarity, 197, 202, 238.
difference between, and judg

ment, 312.

difference between mechanical
and logical, 198.
explanation of the, 205.
fundamental law of, 205.
illustrated, 196.
mechanical, 197.
physical basis of, 205.
Attention, 103, 130.
and discipline, 145.
and feeling, 106.
and memory, 104.
and reasoning, 105.
and recollection, 105.
and volition, 107.

concentrated, 107.

conditions of non-voluntary, 118.
conditions of voluntary, 112.
defined, I10.

importance of, 107.

non-voluntary, and physical con-

and mind, 16.

Books, 144.

are only means to ends, 229.
Brain and body, 18.
and mind, 17, 20.
area of, 35.

correspondence between size and
weight of, and intelligence, 23.
cortex of, 35.

effect of mental action on the, 16.
gray and white matter of the, 32.
gray matter of the, 55.
Greek philosophers' opinion
about the, 17.

is the organ of the mind, 20.
landmarks of the, 36.
local disease of, 59.

removal of parts of the, of ani-

mals, 57.

size and weight of, 23.

supply of blood to the, 18.

weight of, 35.

Brown, Thomas, quoted, 203.

Carpenter, quoted, 103, 106, 145.
Central nervous system, number of
nerve cells in the, 26.

Centres of automatic action, 50.
Cerebellum, 32, 50, 51, 52.
Cerebral cortex, 32.

Cerebral functions, located in the
cortex, 54.

localization of, 20.
Cerebrum, 32, 35, 45, 53.
and intelligence, 53.
functions of, 53, 54.
injuries of, 53.

Character, Dr. Dewey's definition of,
373.

Chess-players, blindfolded, 168.
Child, experiment upon a, 115.
how he distinguishes his body
from the rest of the external
world, 73.

importance of the discovery of
the capacity of each, 390.

Children, doctrine of apperception
shows the necessity of study-
ing, 387.

importance of the study of, 384.
mental life of very young, 113.
study of, 84.

very young, incapable of volun-
tary attention, 113.
Children's curiosity, 142.
judgments, 316.

minds, contents of, 387.
reasoning, 340.

Comenius, quoted, 13, 39, 131.
Commissural fibres, 39.
Compayre, quoted, 249.
Complexity of knowledge, 354.
Concentration of thought, and the
will, 123.

interfered with, 77.
Conception, 273.

Concept, abstraction in the, 290, 292.
assimilation and discrimination
in, 348.

Concept - continued.
generalization in the, 275, 283,
290, 292.

perception in the, 305.
real and vital, 298.

voluntary and involuntary, 285.
Concepts, three steps toward the
knowledge of, 281.

Conclusions, affirmative, 330.
true and false, 329.

Conditions of non-voluntary atten-
tion, 118.

of voluntary attention, 112.
Conscious knowledge, 97.
Consciousness, 17, 98.

and the brain, 17.

of power, 143.
of self, 100.

Cortex, 53.

and intelligence, 53.
and motor fibres, 38.
and sensory fibres, 37.
a system of organs, 37.
cerebral functions located in the,
54.

experiments upon the, of ani-
mals, 56.

of the cerebrum closely con-
nected with intelligence, 35.
stimulation of a definite part of

the, 57.

Cortical centre, change in, 169.
Crow-bar case, American, 20.
Curiosity in children, 142.

DAVIDSON, Professor, quoted, 127,
250, 381, 382.

Deductions, practical, 375.
Development, nature of, 4, 364.
symmetrical, 365.

Dewey, Dr., quoted, 375, 377.
on promotion, 377.

Dewey's conception and that of the

ancient Greeks, 374.

definition of character, 373.
Discipline and attention, 145.
Distinctions of fact and distinctions
of worth, 127.

Dog, intelligence of, 325.
Drawing, 231.

and memory of form, 243.

IDEAS and ideals, 125.

difference between, 126.

Ideas precede all progress, 293.
Image, 255.

Imagination, 255, 334, 368.
abuse of, 266.

and belief, 265.

and feelings, 264.

and geography, 269.

and reading, 270.

constructive, 256, 260, 263.
defined, 255.

different kinds of, 255.

in scientific investigation, 268.

reproductive, 256.

training of, 268.

Importance of attention, 107.

Impulses, efferent, 48.

Inattention, explanation of, 148.

Individuality and inattention, 150.
Individuals, the study of, 384.
Induction, 339.

danger in hasty, 342.
guiding principle in, 343.
Inferences, ethical and pedagogical,

189.

Initiative, 190.

Injuries of cerebrum, 53.

Injury of the brain impairs memory,

22.

Intellect, possession of a certain dis-
cipline of the, 381.

Intellectual activity, 301.
Intelligence and cerebrum, 53.
and cortex, 53.
animal, 324, 325.

corresponding to size and weight
of brain, 23.

Interest and adaptation, 136.

and voluntary attention, 121.
in our work essential to success,

139.

Introspection becomes retrospec-
tion, 84.

JAMES, Professor, quoted, 23, 42, 58,
62, 189, 224, 325, 368.
Jevons, quoted, 344, 345.
Judgment, 305.

act of, illustrated, 306.
conscious, 307.

defined, 311.

difference between association

of ideas and, 312.

nature of act of, 310.

possible by the laws of associa-
tion, 306.

Judgments, 351.

affirmative and negative, 315.
children's, 316.

different kinds of, 314.

first appearance of conscious,
308.

Höffding, H., on children's, 320.
implicit and explicit, 313.

of uneducated men, 317.
what they relate to, 308.

KEEN, Dr. W. W., quoted, 59.
Kepler, quoted, 135.
Knowing, feeling, willing, 152.
Knowledge, 209.

and feeling, 153.

a resultant of sensations, 209.
complexity of, 354.

conscious knowledge is certain,

97.