Night Firing.
The gun may be laid by day and left until required, or by use of the “night firing box,” as follows:—
A stick is placed in the ground 10 yards in front of gun in a direct line with the target, and at night the stick is replaced by the “night firing box”—the sights altered (but not the gun) until aligned on the lamp at the point where the lines form the true centre.
Searching and deflection can be satisfactorily carried out with this apparatus.
EXAMPLES OF FIRE ORDERS.
Normal Fire Order using One Elevation.
Range.
Aiming mark.
Fire (signalled).
Cease fire (signalled).