John Armitage, Lieutenant U. S. N., followed the porter into the rear car of the midnight express for Boston, and after seeing his bag deposited under a lower berth, stood for a minute in frowning indecision. A half-hour must elapse before the train started. He was not a bit sleepy; he had, in fact, dozed most of the way from Washington, and the idea of threshing about in the hot berth was not agreeable. Finally, he took a short thick pipe from his...