... . By IVAN PATRICK GORE. THE PICCADILLY. Colonel Elwy Jones is not one of the pessimists, nor is he worried about the future of oabaret. The reason for these happy views of life is possibly the fact that the business at the Piccadilly is remarkably good. This popularity is doubtless due in part to the fact that dancing in ordinary day clothes is the rule on Sunday nights. Last Monday Davy ...