mental decay or disturbance.

2. Formulate a psychological question regarding each of the following:
hours of work, genius, crime, baseball.

3. Distinguish introspection from theorizing.

4. What different sorts of objective fact can be observed in psychology?

5. What is the difference between the physiology of hearing and the
psychology of hearing?

6. State two reasons why it would be undesirable to limit psychology
to the introspective study of consciousness.

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7. What is the difference between an experiment and a test, (a) in
purpose, (b) in method?

8. Compare the time it takes you to add twenty one-place numbers,
arranged in a vertical column, and arranged in a horizontal line,
(a) Is this introspective or objective observation? Why so? (b) Is
it a test or an experiment? Why?

9. Write a psychological sketch of some one you know well, taking
care to avoid praise and blame, and to stick to the psychological
point of view.

REFERENCES

Some of the good books on the different branches of psychology are
the following:

On animal psychology:

Margaret F. Washburn, _The Animal Mind_, 2nd edition, 1917.

John B. Watson, _Behavior_, 1914.

On child psychology:

Norsworthy and Whitley, _The Psychology of Childhood_, 1918.

On abnormal psychology:

A. J. Rosanoff, _Manual of Psychiatry_, 5th edition, 1920.

On applied psychology:

Hollingworth and Poffenberger, _Applied Psychology_, 1917.

On individual psychology, parts of:

E. L. Thorndike, _Educational Psychology, Briefer Course_, 1914,

Daniel Starch, _Educational Psychology_, 1919.

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CHAPTER II

REACTIONS

REFLEXES AND OTHER ELEMENTARY FORMS OF REACTION,
AND HOW THE NERVES OPERATE IN CARRYING THEM OUT

Having the field of psychology open before us, the next question is,
where to commence operations. Shall we begin with memory, imagination
and reasoning, or with will, character and personality, or with motor
activity and skill, or with feelings and emotions, or with sensation
and perceptions? Probably the higher forms of mental activity seem
most attractive, but we may best leave complicated matters till later,
and agree to start with the simplest sorts of mental performance. Thus
we may hope to learn at the outset certain elementary facts which will
later prove of much assistance in unraveling the more complex
processes.

Among the simplest processes are sensations and