13. At many of the principal Stations, Auxiliary Signals, worked by a wire, are placed 500 yards in advance of the Station Signal Post. These Auxiliary Signals are intended to warn the Enginemen and Guards in thick weather (when the main Signal cannot be well seen at the usual distance) of the =Red= being turned on at the Station, and for this purpose a =Green= Signal is shown at the Auxiliary Post. Except when the Red Signal is shown at the Station, no Signal whatever is shown by the Auxiliary. The Enginemen are not to depend solely upon the Auxiliary Signals; but they may always depend on the =Red= Signal being on at the Station whenever the =Green= is seen at the Auxiliary. TRAIN SIGNALS. 14. Every Engine with a Passenger Train shall carry a =White= Light on the Buffer Plank by Night, and every Cattle, Merchandize, or Coal Train, a =Green= Light. 15. In order to distinguish the Trains while running on the Liverpool and Manchester Branch, the Grand Junction Passenger Trains will carry =two= White Lights, and the Merchandize Trains =two= Green Lights, between Liverpool and Warrington, and the North Union Passenger Trains will carry a =Blue= instead of a White Light on the Buffer Plank of Passenger Trains, and a =Blue= in addition to the Green Light on the Merchandize and Coal Trains. 16. Every Train, after sunset or in foggy weather, shall carry one or more =Red Tail Lights=, according to the description of the Train. 17. The Guard of the Train is responsible for attaching the Tail Lamps on the last carriage or waggon, and the Engine-Driver and Fireman for placing the Lamp on the Engine. When a carriage is detached at a Junction, care must be taken to see that the Tail Light is removed, and re-attached to the Train. 18. The Tail Signal must be inspected at =every Station=; and in the event of the Train being brought to a stand on the Main Line from any cause, the Guard must take care that no one stand before the Tail Lamp, so as to prevent its being seen. 19. A =Red Board= or Flag by Day, or an =extra= Tail Lamp by Night, hung at the back of an Engine or Train, denotes that an =extra Train= is to follow. SPECIAL SIGNALS. NEWTON JUNCTION. 20. By Night a =Green= Light, visible from either of the Liverpool and Manchester Main Lines, denotes that the points are open for Trains going towards Warrington. 21. When a Grand Junction Train from Liverpool is approaching the Junction Points at Newton Junction, at the same time that a Train from Manchester for Liverpool is also approaching, Signals must be given to =both Trains to stop=; and if there is any doubt that there will be danger of collision in the Grand Junction Train crossing the Liverpool South Line, the Pointman must =not= turn the points for the Line to Warrington, but must let the Grand Junction Train run past the points towards Manchester.