-% \item [\texttt{helvetica}] Typeset headings in the Helvetica font,
-% not in Computer Modern.
-%
-% \item [\texttt{palatino}] Typeset the main body text in Palatino, and
-% headings in Helvetica. The |\tt| font is changed to Courier, but
-% see the \texttt{cmtt} option.
-%
-% \item [\texttt{times}] Typeset the main body text in Times, and headings
-% in Helvetica. The |\tt| font is changed to Courier, but see the
-% \texttt{cmtt} option.
-%