Speculation. Stock exchange regulation, hearing, 73d Congress, 2d session, on H.R. 7852, to provide for registration of national securities exchanges operating in interstate and foreign commerce and through mails, and to prevent inequitable and unfair practices on such exchanges, and for other purposes, H.R. 8720, to provide for regulation of national securities exchanges and of over-the-counter markets operating in interstate and foreign commerce or through mails, and to prevent inequitable and unfair practices thereon, and for other purposes, Feb. 14-Mar. 24, 1934.