asynch_close(fh) ;
-In this case the functions C<fn1>, C<fn2> and C<fn3> are used to
+In this case the functions C<fn1>, C<fn2>, and C<fn3> are used to
remember the Perl subroutine to be called. Each of the functions holds
a separate hard-wired index which is used in the function C<Pcb> to
access the C<Map> array and actually call the Perl subroutine.