EXHIBIT A AGREEMENT PURSUANT TO RULE 13D-1(F)(1) The undersigned persons agree and consent to the joint filing on their behalf of this Schedule 13G in connection with their beneficial ownership of the common stock of Oncor, Inc. at December 31, 1997...

                                   EXHIBIT A

                     AGREEMENT PURSUANT TO RULE 13D-1(F)(1)


     The undersigned persons agree and consent to the joint filing on their
behalf of this Schedule 13G in connection with their beneficial ownership
of the common stock of Oncor, Inc. at December 31, 1997 and agree
that this filing is filed on behalf of each of them.


                                   CLOVER CAPITAL MANAGEMENT, INC.



 February 13, 1998                 By:  /s/ Xxxxxxx X. Xxxxx
                                        ---------------------------
                                        Xxxxxxx X. Xxxxx
                                        Managing Director


 


February 13, 1998                         /s/ Xxxxxxx X. Xxxxx
                                   --------------------------------
                                            Xxxxxxx X. Xxxxx