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the person executing this Assignment on behalf of Assignee and the person 
executing this Assignment on behalf of Assignor are each duly authorized and 
empowered to do so.

Capitalized terms used herein without definition shall have the same meanings 
ascribed to them in the Agreement.

                                    ZAPATA CORPORATION ("Assignor")



                                    By:   /s/ Joseph L. von Rosenberg III
                                       ------------------------------------
                                       Joseph L. von Rosenberg III
                                       Vice President, General Counsel and
                                       Corporate Secretary


                                    ZAPATA PROTEIN, INC. ("Assignee")



                                    By:  /s/ Joseph D. Oliver III
                                       -----------------------------------
                                       Joseph D. Oliver III
                                       Executive Vice President--Finance