as possible for passengers. See that the food is especially bad, take up tickets after midnight, call all station stops very loudly during the night, handle baggage as noisily as possible during the night, and so on.
(3) See that the luggage of enemy personnel is mislaid or unloaded at the wrong stations. Switch address labels on enemy baggage.
(4) Engineers should see that trains run slow or make unscheduled stops for plausible reasons.
(b) Switches, Signals and Routing
(1) Exchange wires in switchboards containing signals and switches, so that they connect to the wrong terminals.
(2) Loosen push-rods so that signal arms do not work; break signal lights; exchange the colored lenses on red and green lights.
(3) Spread and spike switch points in the track so that they will not move, or place rocks or close-packed dirt between the switch points.
(4) Sprinkle rock salt or ordinary salt profusely over the electrical connections of switch points and on the ground nearby. When it rains, the switch will be short-circuited.
(5) See that cars are put on the wrong trains. Remove the labels from cars needing repair and put them on cars in good order. Leave couplings between cars as loose as possible.
(c) Road-beds and Open Track
(1) On a curve, take the bolts out of the tie-plates connecting to sections of the outside rail, and scoop away the gravel, cinders, or dirt for a few feet on each side of the connecting joint.
(2) If by disconnecting the tie-plate at a joint and loosening sleeper nails on each side of the joint, it becomes possible to move a sec-
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