four
o'clock
` We must then take his name off , ' he says in a kind of unconcerned sing-song . '' ` What am I to do ? ' burst out the skipper . ` This office closes at four o'clock . I ca n't find a man in half an hour . ' '' ` This office closes at four , ' repeats Mr Powell glancing up and down the pages and touching up a letter here and there with perfect indifference . '' ` Even if I managed to lay hold some time to-day of a man ready to go at such short notice I could n't ship him regularly here -- could I ? '