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 22.2.1 List Read Syntax
 -----------------------
 
 The syntax for lists is an opening parentheses, then all the elements of
 the list (separated by whitespace) and finally a closing
 parentheses.(1).
 
      (1 2 3)            ; a list of the numbers 1, 2 and 3
      ("foo" bar 3.1415) ; a string, a symbol and a real number
      ()                 ; the empty list
 
    The last example needs a bit more explanation.  A list with no
 elements, called the "empty list", is special in some ways.  It is used
 for terminating lists by storing it into the cdr of the last pair that
 makes up a list.  An example will clear that up:
 
      (car '(1))
      =>
      1
      (cdr '(1))
      =>
      ()
 
    This example also shows that lists have to be quoted (REFFIXME) when
 written, because they would otherwise be mistakingly taken as procedure
 applications ( Simple Invocation).
 
    ---------- Footnotes ----------
 
    (1) Note that there is no separation character between the list
 elements, like a comma or a semicolon.
 

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