this habit hinders the sense-awareness of
such an object. A sense-object is not the product of the association of
intellectual ideas; it is the product of the association of
sense-objects in the same situation. This outcome is not intellectual;
it is an object of peculiar type with its own particular ingression into
nature.

There are two kinds of perceptual objects, namely, 'delusive perceptual
objects' and 'physical objects.' The situation of a delusive perceptual
object is a passive condition in the ingression of that object into
nature. Also the event which is the situation will have the relation of
situation to the object only for one particular percipient event. For
example, an observer sees the image of the blue coat in a mirror. It is
a blue coat that he sees and not a mere patch of colour. This shows that
the active conditions for the conveyance of a group of subconscious
sense-objects by a dominating sense-object are to be found in the
percipient event. Namely we are to look for them in the investigations
of medical psychologists. The ingression into nature of the delusive
sense-object is conditioned by the adaptation of bodily events to the
more normal occurrence, which is the ingression of the physical object.

A perceptual object is a physical object when (i) its situation is an
active conditioning event for the ingression of any of its component
sense-objects, and (ii) the same event can be the situation of the
perceptual object for an indefinite number of possible percipient
events. Physical objects are the ordinary objects which we perceive when
our senses are not cheated, such as chairs, tables and trees. In a way
physical objects have more insistent perceptive power than
sense-objects. Attention to the fact of their occurrence in nature is
the first condition for the survival of complex living organisms. The
result of this high perceptive power of physical objects is the
scholastic philosophy of nature which looks on the sense-objects as mere
attributes of the physical objects. This scholastic point of view is
directly contradicted by the wealth of sense-objects which enter into
our experience as situated in events without any connexion with physical
objects. For example, stray smells, sounds, colours and more subtle
nameless sense-objects. There is no perception of physical objects
without perception of sense-objects. But the converse does not hold:
namely, there is abundant perception of sense-objec