In the address of an order annulling or superseding another order, the train first named must be that to which rights were given by the order annulled or superseded, and when the order is not transmitted simultaneously to all concerned it must be sent to the point at which that train is to receive it and the required response first given, before the order is sent for other trains.

The annulling order is here properly made subject to all the safeguards adopted for orders directing the movements of trains, and placed by its number in the series with them. Superseding one order by another without the previous process of annulling is here provided for with the important provision that this method shall not be used for an order including more than one specified movement. It would seldom be applicable to such a case, and if it were it might tend to confusion, so that it is better to annul the whole order and give new instructions in separate orders.

The provision that an annulled order shall not be restored under its original number is quite necessary to avoid the confusion which might arise under the opposite course. The requirement as to priority in transmission of this order is important, in view of the fact that orders reverse the rights of trains, and the reason here is the same as that which obtains in the original transmission.

The Time Convention rules prescribe the forms, etc., for the blanks on which train orders are to be written. These forms are here shown, with the specifications for the manifold-books.

Some slight changes have been made in these by roads adopting them, but in all essential features they have not been departed from, so far as the author is aware.

Standard Train Order Blank for 19 Order.

BOUND HERE.
PERFORATED LINE.

LONDON & PARIS RAILWAY COMPANY

TELEGRAPHIC TRAIN ORDER NO. —.

Superintendent's Office,March 27, 1885.

FORM
19

For Station to C. & E. of No. 13

FORM
19

Conductor and Engineman must each have a copy of this order.

Rec'd 2:15 P. M. Made Complete at 2:16 P. M. Rec'd by Jones Op'r.

Specifications for Train Order Form and Books for Operators for 19 Orders.

Form as here shown. Blank space for order 4 inches, with no lines. The mode of filling the blanks is indicated by small type.