In Re Penn Central Securities Litigation. Appeal of Shearson Hayden Stone Inc., Bache & Co., Inc., Drexel Burnham & Co., Inc., Loeb, Roades & Co., Paine, Webber, Jackson & Curtis Inc., Wheat, First Securities Inc., Dean Witter & Co., Inc., E. F. Hutton & Co., Inc., Hornblower& Weeks-Hemphill, Noyes