CONTENTS
CHAPTER I
PAGE
GENERAL CONTROLS OF CONDUCT i
Reflexes. Structural and functional definition of in stincts. Instincts not racial habits. Less rigidly organized in men than in lower animals. Native dispositions to be distinguished from instincts. Some native dispositions transmissible by heredity, others not. The conditions un der which consciousness appears. Its function is adapta tion to a complex and variable environment. Habit its physical basis and relation to consciousness. Man more largely a creature of habit than lower animals. Man less controlled by habit in a more complex and changeable en vironment. Rationality becomes more dominant. Differ ent theories of the subconscious. As yet comparatively little light upon the problem.
CHAPTER II
MENTAL IMAGES J 9
Their nature. Forms of imagery corresponding to every sense. Differences in individual capacity for imagery. Conditions of the recall of images. Selection of details in recall. Inexactness of the recalled image. Images the material of the intellectual life. Relation to literary style and to practical achievement.
CHAPTER III
MENTAL SYSTEMS 34
Processes of organization. Concepts built up in various fields of experience. Reflective and unreflective organiza tion, and the functions of concepts thus formed. Organi zation of mental images is the process of acquiring mean-
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