depart from the normal to the extent to which they displace common
reactions. The next type of reactions met with in the unclassified
group is characterized by a peculiarly superficial, or non-essential,
or purely _circumstantial_ relationship to the stimulus. Such
reactions, though occasionally given by normal subjects, are more
often given by insane ones, and seem to be somewhat characteristic of
states of mental deterioration which are clinically rather loosely
described as puerilism. We offer the following examples, given by
normal subjects:

_music--town_
_sickness--summer_
_child--unknown_
_house--enter_

Still another type of reactions to be considered in this connection
consists of words which are in no way related to the corresponding
stimulus words, but which arise from _distraction_ of the subject
by surrounding objects, sounds, and the like. In some cases the
experimenter may be able to judge from the direction of the subject's
gaze, from a listening attitude, and so on, that certain reactions are
due to distraction. In other cases, particularly in cases of normal
subjects, the fact that certain reactions are due to distraction may
be determined by questioning the subject on this point immediately
after making the test; In work with insane subjects, as we have
several times had occasion to point out, such aid is generally not
available.

The group of unclassified reactions includes also one more type of
reactions which are of great importance both numerically and