about four o'clock
He had just turned , unexpectedly , an intellectual somersault , but he landed cleanly and without a stagger . `` Come , Miss Devereux , '' he said , `` that 's your line . '' And the scene went on . But when , about four o'clock that afternoon , the rehearsal was over , Galbraith called Olga out to him and allowed himself a long incredulous stare at her . `` Will you tell me , Larson , '' he asked , `` why in the name of Heaven , if you could do that , you did n't do it yesterday ? '' `` I could n't do it yesterday , '' she said . `` Dana taught me . ''