-@defun last* x &optional n
-This function returns the last cons, or the @var{n}th-to-last cons,
-of the list @var{x}. If @var{n} is omitted it defaults to 1.
-The ``last cons'' means the first cons cell of the list whose
-@code{cdr} is not another cons cell. (For normal lists, the
-@code{cdr} of the last cons will be @code{nil}.) This function
-returns @code{nil} if @var{x} is @code{nil} or shorter than
-@var{n}. Note that the last @emph{element} of the list is
-@code{(car (last @var{x}))}.
-
-The Emacs function @code{last} does the same thing
-except that it does not handle the optional argument @var{n}.
-@end defun
-
-@defun butlast x &optional n
-This function returns the list @var{x} with the last element,
-or the last @var{n} elements, removed. If @var{n} is greater
-than zero it makes a copy of the list so as not to damage the
-original list. In general, @code{(append (butlast @var{x} @var{n})
-(last @var{x} @var{n}))} will return a list equal to @var{x}.
-@end defun
-
-@defun nbutlast x &optional n
-This is a version of @code{butlast} that works by destructively
-modifying the @code{cdr} of the appropriate element, rather than
-making a copy of the list.
-@end defun
-