nightman

That the Laystalls be removed as far as may be out of the City, and common Passages, and that no Nightman or other be suffered to empty a Vault into any Garden near about the City.

Most men who are of sufficient intelligence and moral character to make thoroughly satisfactory block signalmen will naturally seek a respite occasionally from such a confining routine, and if they cannot accomplish this without securing a substitute at their own expense they are under constant temptation to “change off”—the day man working for the nightman and the nightman for the day.