X0201 42003-07-29 0000804212 AIRGAS INC ARG 0001237794 STOUT DAVID M 1000Stock Option (Right to Buy)18.982003-07-294A07500A2003-07-292013-07-28Common Stock75007500DNot applicable.Dean A. Bertolino, Attorney-in-Fact for David M. Stout2003-07-30