inclusive while in other respects it is not sufficiently so. However,
the error due to personal equation is slight; the inclusion of certain
"far-fetched" or even frankly pathological reactions may be discounted
by bearing in mind that the general value of this group is not equal
to that of the group of common reactions; and the number of strictly
normal reactions which are not included is after all small. Our
experience has shown us that the appendix constitutes an important aid
in the analysis of individual reactions.

*Pathological Reactions. Derivatives of Stimulus Words.*--We
place here any reaction which is a grammatical variant or derivative
of a stimulus word. The tendency to give such reactions seems to be
dependent upon a suspension or inhibition of the normal process by
which the stimulus word excites the production of a new concept, for
we have here not a production of a new concept but a mere change in
the form of the stimulus word. As examples of such reactions may be
mentioned: _eating--eatables_, _short--shortness_,
_sweet--sweetened_, _quiet--quietness_.

*Partial Dissociation.*--We have employed the term dissociation
to indicate a rupture of that bond--whatever be its nature-which may
be supposed to exist normally between stimulus and reaction and which
causes normal persons to respond in the majority of instances by
common reactions. And we speak of partial dissociation where there is
still an obvious, though weak and superficial, connection. Under this
heading we can differentiate four types:

*Non-specific Reactions* have already been defined; we
distinguish those in this class from those in the class of common
reactions by means of the frequency tables.