@cindex @samp{#@var{n}=} read syntax
@cindex @samp{#@var{n}#} read syntax
- In Emacs 21, to represent shared or circular structure within a
+ In Emacs 21, to represent shared or circular structures within a
complex of Lisp objects, you can use the reader constructs
@samp{#@var{n}=} and @samp{#@var{n}#}.
function, because quitting out of many timer functions can leave
things in an inconsistent state. This is normally unproblematical
because most timer functions don't do a lot of work. Indeed, for a
-timer to calls a function that takes substantial time to run is likely
+timer to call a function that takes substantial time to run is likely
to be annoying.
@defun run-at-time time repeat function &rest args