<PAGE>
EXHIBIT 1
Pursuant to Rule 13d-1(k)(1)(iii) of Regulation 13D-G of the General Rules
and Regulations under the Securities Exchange Act of 1934, as amended, the
undersigned agree that the statement to which this Exhibit is attached is filed
on behalf of each of them.
/s/ ROBERT C. WARREN JR.
Dated: July 7, 2000 -----------------------------------------
Robert C. Warren Jr.
/s/ RICHARD S. ANDERSON
-----------------------------------------
Richard S. Anderson
/s/ TERRY H. CATHEY
-----------------------------------------
Terry H. Cathey
Page 13 of 13
