tter.
| There are three essential conditions to which every representation
| must conform.  It must in the first place like any other object have
| qualities independent of its meaning.  It is only through a knowledge
| of these that we acquire any information concerning the object it
| represents.  Thus, the word &quot;man&quot; as printed, has three letters;
| these letters have certain shapes, and are black.  I term such
| characters, the material qualities of the representation.  In the
| 2nd place a re