(Remark: Our use of expressions like “names of numbers”, “names of colours”, “names of materials”, “names of nations” may spring from two different sources. a) One is that we might imagine the functions of proper names, numerals, words for colours,
9.
etc. to be much more alike than they actually are. If we do so we are tempted to think that the function of every word is more or less like the function of a proper name of a person, or such generic names as “table”, “chair”, “door”, etc. The b) second source is this, that if we see how fundamentally different the functions of such words as “table”, “chair”, etc. are from those of proper names, and how different from either the functions of, say, the names of colours, we see no reason why we shouldn't speak of names of numbers or names of directions either, not by way of saying some such thing as “numbers and directions are just different forms of objects”, but rather by way of stressing the analogy which lies in the lack of analogy between the functions of the words “chair” & “Jack” on the one hand, & “east” and “Jack” on the other hand.)
7).   B has a table in which written signs are placed opposite to pictures of objects (say, a table, a chair, a tea-cup, etc.). A writes one of the signs, B looks for it in the table, looks or points with his finger from the written sign to the picture opposite, & fetches the object which the picture represents.