In truth, the fifteen minutes attending the change of a watch were a period not only of inconvenience, but of real danger too rarely appreciated. I remember one of the smartest seamen and officers of the old navy speaking feelingly to me of the anxiety those instants often caused him. The lieutenant of an expiring watch too frequently would postpone some necessary step, either from personal indolence or from a good-natured indisposition to disturb the men, who when not needed to work slept about the decks--except, of course, the lookouts and wheel. The other watch will soon be coming up, he would argue; let them do it, before they settle down to sleep. There were times, such as a slowly increasing gale, which might justify delay; especially if the watch had had an unusual amount of work. But tropical squalls, which gather quickly and sweep down with hurricane force, are another matter; and it was of these the officer quoted spoke, suggesting that possibly such an experience had caused the loss of one of our large, tall-sparred sloops-of-war, the _Albany_, which in 1854 disappeared in the West Indies. The men who have been four hours on deck are thinking only of their hammocks; their reliefs are not half awake, and do not feel they are on duty until the watch is mustered. All are mingled together; the very numbers of a ship of war under such circumstances impede themselves and their officers. I remember an acquaintance of mine telling me that once on taking the trumpet, the outward and visible sign of "the deck being relieved," his predecessor, after "turning over the night orders," said, casually, "It looks like a pretty big squall coming up there to windward," and incontinently dived below. "I jumped on the horse-block," said the narrator, "and there it was, sure enough, coming down hand over fist. I had no time to shorten sail, but only to put the helm up and get her before it;" an instance in point of what an old gray-haired instructor of ours used to say, with correct accentuation, "Always the hellum first."