This chapter shall become effective on , except that sections 78f and 78(b to e) of this title shall become effective on ; and sections 78e, 78g, 78h, 78i(a)(6), 78j, 78k, 78(a), 78m, 78n, 78, 78p, 78q, 78r, 78s, and 78dd of this title shall become effective on .July 1, 19341934-07-01September 1, 19341934-09-01October 1, 19341934-10-01llo