Exhibit 23


CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS



As independent public accountants, we hereby consent to the incorporation by
reference of our reports included in this Form 10-K, into the Company's
previously filed Registration Statements: (1) Registration Statement File number
33-40472 on Form S-8 of the 1986 Stock Option Plan, the 1985 Stock Incentive
Plan, the 1985 Key Employee Incentive Stock Option Plan and the Individual
Written Compensation Plan dated May 10, 1991, (2) Registration Statement File
number 33-44865 on Form S-8 of the 1986 Restated and Amended Stock Option Plan
and Directors' Stock Option Plan dated January 8, 1992, (3) Registration
Statement on Form S-8 of the 1992 Employee Stock Purchase Plan dated June 16,
1992, (4) Registration Statement File Number 33-86548 on Form S-3 dated
November 21, 1994 and (5) Registration Statement File Number 33-65463 on form
S-3 dated December 28, 1995 as amended on February 9, 1996.


                                                  ARTHUR ANDERSEN LLP


Portland, Oregon,
  June 26, 1996