EXHIBIT 99.4


                           CONSENT OF WILLIAM A. POPE

         I hereby consent to being named as a person who will become a director
         of Lipid Sciences, Inc., an Arizona corporation, in connection with the
         consummation of the merger (the "Merger") contemplated by the Agreement
         and Plan of Merger, dated as of July 9, 2001, between Lipid Sciences,
         Inc., a Delaware corporation, and NZ Corporation, an Arizona
         corporation ("NZ"), in the Registration Statement on Form S-4 and all
         amendments thereto, including post-effective amendments, to be filed by
         NZ with the Securities and Exchange Commission in connection with the
         Merger (the "Registration Statement"), and to the filing of this
         consent as an exhibit to the Registration Statement.

                                    Signature: /s/ William A. Pope
                                               ---------------------------
                                               William A. Pope

                                    Date: October 9, 2001
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