1 * find better (bolder) bold <, >, \, {, }
3 * mark unevaluated args of special forms; perhaps \widehat{}
5 * mark modifiable args; perhaps \widetilde{}
9 - multiple return values mentioned and usage of the three \retvals
15 - arg* vs. args (list)
17 - talking metavariables
19 - lexical vs. dynamic binding
21 - errors/conditions always mentioned as \kwd{}
23 - applicability of declare
26 * find better return value markers; maybe underline + number
28 * change Fu and SF to ANSI conform function, macro, special operator