POWER OF ATTORNEY



          The undersigned constitutes and appoints Hannah
Prior and John Kahle, and each of them, as the
undersigned's true and lawful attorney-in-fact and agent, with
full power of substitution and resubstitution, for the
undersigned and in the undersigned's name, place and stead, to
sign any and all SEC statements of beneficial ownership of
securities on Forms 3, 4 and 5 as required under Section 16(a) of
the Securities Exchange Act of 1934, and to file the same with
all exhibits thereto, and other documents in connection
therewith, with the Securities and Exchange Commission, granting
unto said attorney-in-fact and agent full power and authority to
do and perform each act and thing requisite and necessary to be
done under said Section 16(a), as fully to all intents and
purposes as the undersigned might or could do in person, hereby
ratifying and confirming all that said attorney-in-fact and agent
may lawfully do or cause to be done by virtue hereof.

          A copy of this power of attorney shall be filed with
the Securities and Exchange Commission.  The authorization set
forth above shall continue in full force and effect until the
undersigned revokes such authorization by written instructions to
the attorney-in-fact.

          This power of attorney revokes my previous power of
attorney dated May 17, 1991.




Dated:  September 6, 2000.


                           /s/  Ronald J. Thyen
Signature of Reporting Person


                           Ronald J. Thyen, Senior Executive Vice
President
                           Name and Title