You'll find it very instructive, Malone, as bearing upon psychic photography and other matters.

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.

[The] increase in nuclear missiles available to the West was operationally unnecessary and would only add to the existing nuclear overkill; mixed manning was a formula for military disaster; […]

[…]the Lord ſhall returne thy wickedneſſe vpon thine owne head.