Errata

  "All reference to Patent No. 5,379,091 to Osamu Tanitsu et. al. of
Kawasaki-shi, Japan for ILLUMINATION OPTICAL APPARATUS AND SCANNING
EXPOSURE APPARATUS appearing in the Official Gazette of January 3, 1995
should be deleted since no patent was granted."

                                     Errata

  "All reference to Patent No. 5,381,111 to Stephen W. Hobrecht of
California for VARIABLE RESISTANCE TERMINATION CIRCUIT appearing in the
Official Gazette of January 10, 1995 should be deleted since no patent was
granted."