0000927016-99-001236 DEF 14A 1 19990505 19990331 BOSTON PROPERTIES INC 0001037540 6500 042473675 DE 1231 DEF 14A 34 001-13087 99581368 8 ARLINGTON ST BOSTON MA 02116 6178592600 8 ARLINGTON ST 8 ARLINGTON ST BOSTON MA 02116 DEF 14A 1 000092701699001236-001-seq1-def-14a.txt SCHEDULE 14A